My concern with this sort of thread is that rather than it being a supportive thing. It becomes a vehicle for "outing" transgender Folkies(who may, or may not want that) or starting rumours about people. Or at worst, a cynic may suggest, that someone might start a thread like this to find out identities of people for malicious reasons. So I believe as an outsider(ie not a member) it could give a bad impression of the forum.
That said, the calibre of your performance is far more important to me than your gender or what gender you may have been previously.