WotLK came out in 2008. You'd think people who believe everything since then has been crap would've looooong forgotten about the game and stopped caring about it. Hell I know if I would be as unhappy as some of the perpetually angry on the forums, I wouldn't even be giving the game a 2nd thought, it just wouldn't be on my radar. There are A LOT of good games to play. Try some of those.
I can't think of another game that people hate so much yet keep coming back to it.