Ending Aversion

""Hey, let me tell you something. I just finished this show/movie/book, and it's awesome! It has such a great plot! There are so many great mysteries and secrets in it, and the writing is just excellent... Well, at least for the first bit... I mean, it sort of starts to collapse under its own mythology after a while, and the ending doesn't really answer all the questions it raises, but man... you're in for a heck of a ride! ...hey, where are you going?""

When people get involved in a story, many have the basic expectation that it will have a satisfactory ending. This, in and of itself, is not unjustified: no matter how good acts one and two are, if act three is unsatisfying, that is all that the people outside the theater will be talking about.

The thing is, so much conspires against a satisfactory conclusion.

Maybe the show was Screwed By the Network and was canceled before any of the questions it raised could be answered. Maybe as time went on, the story collects so many elements that there was no possible way that they could do each justice. Maybe it was the first part of a series left unfinished by the now-deceased or bored author, leaving the epic unfinished. Maybe the Series Goal was never achieved. Maybe the writers just plain tired themselves out of creativity by the end of it, and so much Fanon Discontinuity is claimed, you could swear the fandom was comprised solely of historical revisionists. Maybe too many a Spoiler was revealed, and it seems pointless to watch. Or maybe you've just heard that the whole thing devolves into such unspeakable surreality that it would taint the rest of the experience.

Hearing about all these things makes people wary. No one wants to spend time dedicating themselves to something that will leave them disappointed. Maybe the overall experience would have more than compensated for any supposed deficiencies of the ending, but the potential viewer has been scared off.

This is Ending Aversion.

Now, of course, one could make the attempt to keep watching it for as long as they liked it, then turn it off when they didn't. When someone becomes attached to the characters and the story, however, that's easier said than done. This, then, often results in the viewer going online to complain about what happened... and the cycle begins anew.

Ironically, the biggest contributor to Ending Aversion might just be those who consider themselves the most hardcore fans of a work. Criticism is fun to read and to write and fan discussion will inevitably lead to someone choosing to Accentuate the Negative of the shows they love: "They Changed It Now It Sucks." "It was better when all the mysteries were still up in the air." "It was great when it started, but the last couple of seasons never happened", and so on.

And well, it's hard to say that we're not somewhat to blame either.

If a work is avoided because of a Downer Ending, that is Angst Aversion.

Compare to Hype Aversion and The Firefly Effect (wariness of committing to a new show, as opposed to one that has concluded). See also Awesomeness Withdrawal.

Warning: Ending SPOILERS below.

Gainax Ending

 * Neon Genesis Evangelion is infamous for its Gainax Ending, and is, as of now, the show that lead to Studio Gainax being the Trope Namer. The last two episodes make so little sense (they're essentially a High School AU of the series) that some fans might recommend you skip them and go straight to End of Evangelion. This makes it the rare work that is a clear example of something hit by Ending Aversion, Hype Aversion, and Angst Aversion.
 * The Prisoner.
 * The Big O (which was also possibly Cut Short).
 * Mass Effect 3 is quickly gaining a reputation of being to Video Games what Lost was to Live Action Television and what Neon Genesis Evangelion was to Anime; its infamous ending, in more pessimistic interpretations, basically boils down to nothing more than a choice of which color of light you want to destroy the galaxy in a massive borderline Deus Ex Machina (Or Diabolus Ex Machina) which came practically out of nowhere.  Like Evangelion, it is a clear example of something hit by Ending Aversion, Hype Aversion, and, as a direct result of the Darkness Induced Audience Apathy the ending may cause courtesy of its many Inferred Holocausts that make it look like a Shoot the Shaggy Dog story, Angst Aversion.
 * While not an ongoing series, Metal Gear Solid 2's ending has a sufficient reputation for being bizarre and incomprehensible to bring about this trope.

Mind Screw

 * Twin Peaks.
 * Tsubasa Reservoir Chronicle.

Seasonal Rot

 * Buffy the Vampire Slayer - season 4 made some decisions that weren't very popular, though the general attitude is that season 5 got better again. Showrunner Joss Whedon then took a year off during season 6 to focus on the musical episode, and while people do remember and celebrate the musical episode even years later, this meant that he handed off writing duties for season 6 to other writers, and it showed. Things got moving again in season 7 when Joss came back full time, and the story intentionally built up to the final battle, but many still found it to be little better.
 * Battlestar Galactica - the first two seasons are great, to the point that it won a Peabody Award during the break between seasons two and three. When season 3 got underway, they started running out of ideas, and it was downhill from there. It didn't help that a large portion of the acclaimed writing staff (but not the head writer) left the show before season 3 got underway, particularly all of the female writers (who also were acknowledged to be the guiding hand in the writing of the female characters up to that point).
 * Scrubs: Season 8 ended JD's story (our protagonist and narrator for the entire series) on a high note, and was intended to be a series finale. Season 9, however, revamped much of the cast (Turk and Cox were still regulars, others were relegated to guest stars), changed the setting, and had a different focus (med school). Series Creator Bill Lawrence initially wanted to rename the show to make it clear that this was a new beginning, but this was nixed by the network.
 * The West Wing.
 * Red Dwarf. Until very recently, it was also afflicted with Left Hanging concerns.
 * Xena: Warrior Princess.
 * Heroes - Some people think the rot even began with the season one finale. The problem isn't that the writers never planned out the show...it's that they intended the show to have an anthology-format with a rotating cast. Problem was that the season one characters instantly became popular national sensations, so they were forced to come up with new plots for them on the fly. It didn't help that there was a Writer's Guild of America strike which truncated season 2. Viewers started leaving in droves during season 3 when they started just recycling plots from season 1 (how many times can Sylar flip-flop from evil to good and back?). Was anyone actually watching this show by the fourth and final season?
 * Stargate SG-1 - They'd sort of resolved all of the main story arc by the end of season 7, and a later episode broke the Fourth Wall to say that fans felt they phoned it in for season 8. The real break was seasons 9 and 10, when they introduced an entirely new set of villains, which to be honest were something of a retread of the earlier ones. They were even going to rename the show "Stargate Command" when season 9 began to try to emphasize how different it was, but rather than make a sequel-spinoff the network felt more viewers would stay if they kept the name intact.
 * Star Trek Voyager - The introduction of Seven of Nine in season 4 was intended to be an Authors Saving Throw, and things at least got more interesting. But seasons 5 through 7 are generally seen as a serious drop in quality, recycled plot lines, and just cranking out stories "like sausages". The series finale "Endgame" was heavily criticized.
 * Bunny Drop - While the second half of the story introduced a Genre Shift and a Time Skip that was disliked by some, what really turned off a larger portion of the audience was
 * Robin Hood ended its second season with the murder of Maid Marian at Guy of Gisborne's hands, described enthusiastically by the creators as "a shocking twist" and a chance to "rock the show." Audience reaction ran the gamut from bafflement to disgust, and it became increasingly clear throughout season three that the writers had put little thought into what would happen after removing the show's emotional centre. The show floundered through a range of unconnected plotlines and arbitrary new characters before being cancelled with all the fan-favourite characters dead, the hated Scrappies still standing, and several plot threads dangling. Still, it's quite fun telling non-viewers about Marian's death: they'll invariably pull a face and go: "Huh? Why would they do that?"
 * The Saw series (along with minor Left Hanging and disputed The Chris Carter Effect). An excellent example of why myth arcs and mainstream-Hollywood-strength Executive Meddling do not mix.
 * The show Alias had two fascinating and complex seasons, but then a series of mistakes on the part of the writers, the producers, a dose of Executive Meddling, and a nasty feedback loop from 'shippers in the fan community derailed the series in Season 3. Throughout much S3, the show circled in a holding pattern, then in S4 and S5 the ongoing, overarching storylines collapsed and the writers even began to lampshade their own failures.
 * Super Mario Bros. It doesn't help that the Princess' rescue isn't going to last very long.

Bolivian Army Ending

 * Angel.
 * Animorphs.
 * Blakes Seven.

The Resolution Will Not Be Televised

 * Samurai Jack.
 * The creator, Genndy Tartakovsky, originally intended to create a movie to end the series. However, after the less than stellar performance of his Powerpuff Girls movie, he shelved the idea and hasn't come back to it since. Interestingly, the series was never officially canceled, so he could theoretically end it at any time.

The Chris Carter Effect

 * The X Files.
 * A Series of Unfortunate Events. In this case, The Chris Carter Effect was intentional.

Left Hanging / Cut Short

 * Clone High.
 * Carnivale.
 * Joan of Arcadia.
 * Tru Calling.
 * Harsh Realm.
 * Alan Moore's run on Supreme.
 * Lois and Clark.
 * A Modest Destiny.
 * Farscape - cut short due to abrupt cancellation at the end of season 4, after they'd already been told they'd get a fifth season, so they didn't plan it as the final season. The show did later get a finale-miniseries which was intended to be the truncated version of the plot developments in what would have been season 5. Surprisingly, this actually provided good explanations and resolution for many of the running plotlines, so ultimately Farscape averted this trope.
 * And now it has comics wrapping things up even tighter, including wrapping up the series-long plot point of Rygel wanting to take his throne back from his traitorous cousin (never done on the show because making and operating so many Hynerian puppets would be been impossible).
 * Stargate Universe
 * Soap which ended on three cliff-hangers
 * Mahou Sensei Negima was given a rushed ending when Akamatsu Ken fought with the editors regarding property rights over the series and decided to End The Franchise Early And Run rather than surrender them.
 * The first anime also had a very rushed ending as the creators thought they would have multiple seasons to work with (as was necessary to adapt Negima faithfully) and were disabused of this notion with only 1/3 of the season left to wrap it up.

Author Existence Failure

 * The Wheel of Time, though from what we've seen of Brandon Sanderson's first entry in the series, it may wind up averting this trope.
 * The Hitchhikers Guide to The Galaxy, which gets bonus points for having a Downer Ending.
 * The Mystery of Edwin Drood.
 * Riget - not the author, just around 4 essential cast members.

Author Filibuster / Author Tract

 * Cerebus.

Ending Fatigue

 * Babylon Five by way of hasty resolution of the Myth Arc leading to Ending Fatigue until the actual finale.

No Ending

 * Inception.
 * The Sopranos is a particularly controversial example.
 * Stuart Little. It should be noted that this only applies to the original book and not the movies.
 * A Series of Unfortunate Events. The most basic conflict is resolved, but a great many plot threads are simply left hanging.

Orphaned Series

 * RPG World.
 * Every Dead Fic in existence, by the concept's very nature.

Keep Circulating the Tapes

 * Zot, for quite a while. (The final set of print issues, representing Zot's adventures on our Earth, and inevitably described as some of the best work of the series, had not been collected in Trade form until very recently.)