To elaborate, there was the infamous Haruhi Suzumiya panel/SOS Brigade Concert in Anime Expo '07. Everything was completely unprepared and unprofessional (not anyone's fault, but rather the ones who organized the panel--or, heck, the entire convention), and there was one moment when Johnny threw a script as part of an act. Even so, the Hate Dumb still blamed Bosch for his part, among other reasons. The bad experience was too overwheming for Johnny, and he had stated on his Myspace that he would not go to 2008's Anime Expo.
To clarify, only Jason David Frank and Catherine Sutherland wanted to leave, which should simply mean promoting Adam to red and getting a new green, pink, and (keeping with Fox's desire for a tagalong) blue, but all of the previous Rangers were fired and replaced with new characters: Steve Cardenas was replaced with a Tagalong Kid, the most infamous Scrappy. The new red and green rangers would of course be hated, though the new green doesn't get that much hate.