Mistakes of Youth

Mistakes of Youth is a webcomic started in 2006, revolving around the adventures of Rets, a "borderline hikikomori" otaku with a penchant for lolicon, Tina, a yaoi/shotacon fan who is inexplicably Rets' best friend, Brad, the shopclerk who is constantly irritated by Rets, and Rets' Japanese internet friend Go.

The title is a relatively famous line (quoted twice in Otaku no Video) from Char Aznable of Mobile Suit Gundam.

Tropes used in Mistakes of Youth include:

Ahoge: On Tina. And Rets, on occasion.
Animesque
Anime Hair: All of the characters. Most notably Rets.
Archive Binge: This Troper in particular. I read the entire 140+ series in one night.
- With less than 200 strips at this point is incredibly easy read all the series in some hours.
Art Evolution: Very subtle, but the characters have gradually become prettier.
Art Shift: Usually for comedic effect.
Big Ol' Eyebrows: Rets.
Bishie Sparkle: Issue 8
Blank White Eyes: Used often. Ties with its Animesque.
Con Recap: Several instances.
Dull Eyes of Unhappiness
Fetish: Rets' obsession with Lolicon.
GIS Syndrome: For anime posters and box/manga covers. Often also for televisions.
The Rant: Would be better used to explain the above comic's often obscure joke.
Red Eyes, Take Warning: On Tina. The warning is duly appreciated.
Slice of Life
Strip Archive
Take That: Often implemented. Especially at Hideki Anno's expense.
- There's also an especially nasty (though very funny) one against Bee Train, which the author seems to dislike for mediocre production values and perceived repetitiveness of theme.
- There have been numerous ones directed at Gundam00.
Poster Gallery Bedroom: Rets' room is covered with loli posters from various anime sources.
Yaoi Fangirl: Tina
Yandere: Tina