Creating an LGBT guild is one thing, just make sure that you actually DO have straight ppl in the guild or you might wind up in a guild enforcement problem....
The problem being that policy enforcement does not distinguish exclusivity...
Activision Blizzard won their court case over destroying an LGBT guild because they refused to include straight ppl, so therefore....
it fell under the same heading as racism, sexism and genderism...
if you're afraid to be out of the closet and open with the guild your in, find a different guild!
(p.s. I had a normal old regular guild once, that was run by a gay man, then by a lesbian, and a core of the guild was straight... btw, every LGBT member was completely open in convo, had great times. But if you feel you can't be open completely, you have personal issues to resolve and shouldn't push em onto the community...)