Speaking of insulting trolls, I would like to point out cfMC. He has insulted multiple individuals on Chud repeatedly, and then hides behind the defense that they are trolling him when they call him out on his actions.
Not only does he regularly insult people with vulgar language, but he also recently wrote up a tirade in the "Bad Business Keeps DVDs Off Shelves" explaining that he believes pirating movies is fine because people should have access to movies whenever they want them.