Why do people hate trolls?

On YA a troll is a user who posts irrelevant and/or controversial questions or answers just to cause trouble and not because he is truly seeking or trying to give advice. Some of those postings are actually witty and entertaining, but the ones trying to spread hate speech or other downright meanness are certainly not acceptable at all and may most likely get reported by quite a few users.

Cuz they are annoying and mean and crazy. There's not a reason to not get pissed off at trolls

I don't like the trolls who post rude stuff. The weird ones are cool.

We are ALL trolls. I DESPISE trolls because they are so selfish. They want ALL of your attention ON THEM. Trolls are abusers when they get online and abuse other people just feed THEIR EGOS by insulting and demeaning other people to FEED THEIR FEELINGS OF GRANDIOSITY, but it's delightful to feed a troll's parnoia right back to the troll and watch the troll chase his own tail with circular reasoning.

http://amasci.com/weird/flamer.html

http://samvak.tripod.com/journal67.html

http://samvak.tripod.com/journal60.html

http://www.narcissistic-abuse.com/journal95.html

As long as they're being funny and not mean then I like them :p