There's some proper bollocks on his thread. Being brought up in a one-club City I've never understood the whole 'hating teams just because' thing. I mean, I can't stand Leeds for numerous reasons, I think Leicester fans are a proper set of nobheads, Milwall fans are almost as bad and until this time last year I'd never left a match at Bramall Lane without hating Sheff United with a passion. However, I couldn't really 'hate' a team without a good football-based reasoning behind it.
Also, I've never understood the idea that you want other teams to hate you. Whenever there is a Leeds/Hull thread it always ends up with a Leeds fan telling us they don't hate us. Why would we want to be hated? :S Milwall fans are seriously ****ed up with this, they actually like that everyone hates them.
Like Golaccio saoid, Hull Whites are the biggest enemy.