I think it was a serious stretch to deduce that waggling his wrists was homophobia, never mind blatant homophobia worthy of an official warning. George clarified that he was demonstrating what he perceived to be exaggerated, ostentatious behaviour; he actually balked at the notion he meant camp (presumably due to the negative connotation of the word).
There are a few house mates who have self appointed as language/behaviour police. It makes me uneasy, because it habitually verges towards putting words in people's mouths; assuming and attributing intent.
I think the way George is being treated/approached is starting to verge on bullying. Disagreeing with a person's (George's in this case) views is one thing, attempting to oppress/shame them for them is another. I've saw George being called a bigot online (he's been called a bigot on this very thread), and he's demonstrably not a bigot - because if he'd said anything remotely bigoted he'd have been removed from the house (thus it's being used as a slur in his case - and that's why words like bigot are being rendered obsolete/meaningless, which isn't good, because some people ARE bigots!).