Bad attitude. Baditude.
Well if your fanbase is full of assholes and idiots in the foist place, I honestly think that it gets to the point of just sticking it to them. You're telling them to just shut up because they can become extremely annoying.
This is if your fanbase is the cause of your baditude. If you just start off with a baditude (someone like DarkSydePhil who's naturally an ******* to everyone including his fans just to be a controversial cocksucker), then you know that they're either doing it for the lolz, the attention, having a big ego (which could fall into the attention phase) or just legitimately have a social problem.