In fact, Proudmoore has been the unofficial gay server since day 1. I don't want to speak for every guild, but guilds that don't post anything about that kind of behavior probably don't care about policing it, and likely won't be worth your time. October 21st, DS has become a successful raiding guild while completing all content in WoD. Feb 21, 1. Ceri B.
Yeah I know how that is:
English US. I'd be interested too. I know of a few guilds that tout themselves as LGBT friendly - they are quite popular and still around.
I don't know if this policy is heavily enforced.