Minorities from what region?
What sort of minorities?
This was the first thing that danced out at me (on the assumption that this would primarily be a forum for... I'm searching for wording that isn't crude but "racial minority discussions" conveys basically what I mean).
Elliquiy has an international membership (albeit one that I imagine is heavily skewed towards the US) and fairly self-evidently a minority in one country may be the majority in another. I don't know if there are any E members in Kenya (although I logged in from there once) but if they are where would they stand in a discussion of (crude wording again) "black issues"... as they are the majority in Kenya. If an E member is a expat do they count as a minority... would we consider it an appropriate place for say, white Americans who have moved to live in Mexico to discuss any issues they have. I'm English... do I count as a minority?
Echoing Veks existing points it strikes me that there are already areas for discussing (still exceptionally crude wording) "minority issues" on E. For the more debate and political side there's P&R. For an academic take there's E-U. For any rants there's B&U. For discussions about how it impacts on roleplaying there's On-topic. For other points that don't necessarily fit in the other areas there's Off-topic. If you want to set up roleplays with a decidedly racial focus (again that's crude wording but I hope my intent comes across) there's the roleplay requests and if you'd like to play more non-white characters you can put that it your O&O's so prospective writing partners are aware.
I appreciate that the QUILTBAG largely straddles those areas and delves into all of them. I wasn't involved (or even really aware) of the reasons behind its creation or whatever fallout there may have been from drama (Veks post is basically the first time I knew about it) so I can't dive into the thinkin behind it. What I can say is that it seems to me that the QUILTBAG doesn't fall into the issue mentioned above. Put simply, a Queer/Questioning, Undecided, Intersex, Lesbian, Trans (Transgender/Transsexual), Bisexual, Asexual or Gay (to use the full term) person is still that whether they live in Mombasa or Marlborough. The issues they face may be different but the status as someone who identifies as QUILTBAG (is that the right way to phrase it?) doesn't? In contrast a white man in Mombasa is a minority as is a black man in Marlborough. If they swapped locations suddenly neither would be. It's not just that their issues are different, it's that their very status as a minority or not changes.