May i resume your post like this; You enter a room full of people you don't like, then you ask everybody to leave it but it aint your room. What do you expect?
Trolling is a form of harassment.
now if you enter a room full of people you dislike and try to start a conversation with them. Then they start belittling you or calling you names your probably going to hit some body or worse.
Ya, i get it, its fun to pick on up set angry people and make your self feel better about being you.... or what ever your reasoning. I've done it when i was younger too. There's a point when you need to look in the mirror and ask your self, "is this it, is this all I am"