I don't give a damn if you like/are neutral about/hate something. I.E. MLP, Doctor Who, Anime, Adventure Time, Gravity Falls, etc.. the list goes on.. But when you go out of your way to stir shit up just because you don't agree with it is annoying.
Extreme Pro/Anti groups
These don't do much except for creating even more hatred to the other side and vice versa. If it's concerning an issue that effects all, that's different. But I'm talking about groups that go out of their way to interfere the lives of others. This doesn't just affect dA, it affects the internet as a whole. Any site that has group features is bound to be plagued with nasty