I'll go ahead and play devil's advocate by saying that I dislike people who "hate the idiocy and ignorance that anonymity brings." (Well, the trolls anyways. I won't comment on cyberbullies.) Allow me to clarify a few points:
-No, we aren't nice.
-No, we aren't politically correct.
(And most importantly)
-No, we don't care about you.
Believe me when I say that I'm not trying to exalt the internet troll as some kind of avatar towards a more enlightened human being. We go in with the full intention of messing up somebody's game, day, or week. And if we could pull it all off in real life, we would. (There are several reasons why I keep a multitool on my person at all times.) Why? One word: schadenfreude. The act of gaining happiness from another's misfortune. It's a psychological element of every person's psyche. Trolls just happen to enjoy it more than some others, or perhaps trolls are more in tune with this element. Ever enjoyed watching a car crash (for any reason, televised or real)? Congratulations, you're a terrible person. Ever gotten a smile from seeing a speeder getting pulled over after rocketing past you a mile ago? Well, to that guy getting the ticket, you're an asshole. It's all relative anyways, so why not use the advent of modern technology to get away with those "assholish" tendencies. Better to let it out via a little bit of teamflashing over CSS or vulgar internet posts over an internet forum than letting it build up into something worse, right?
Again, trolls aren't nice people. But anyone who complains about trolls might as well complain about how wet they get whenever it rains. Trolls are just a part of the internet ecosystem.
Here's a little song that might put my point across a little better: http://www.youtube.com/watch?v=t9B-ZoS0wvU