I've never been to DU, so it actually could be called 2 Hours Hate, but didnt Orwell call it "two minutes", not 2 hours?
No, it is a "2 Minutes Hate". DU doesn't actually have such a thing, but their comments against those they see as traitors (and there are many) reminds me of Orwell.
Perhaps, but understand this: for DUers, it would be quite a concession to limit their hate to 2 hours.