"Whatever you do, don’t attempt to engage your rival’s actual arguments — keep it personal, and content-free. Remember, you’re not trying to change minds, you’re trying to shore up your own enraged-nerd credibility. (But do save 'KILL YOURSELF' or 'DIE IN A FIRE' for more serious matters, like if somebody doesn’t enjoy a particular video game quite as much as you do. You don’t just want to throw these around willy-nilly.)"
Taken from a handy ten-point guide how to be outraged online. Have a read and if you don't enjoy it, you can, well, die in a fire.
(Thanks to Stuart for the link.)