Argh, the hazards of simultaneous posting ...
Guys who have busty avatars, huh? Nice to know you're thinking about us!

I've never thought of the avatar -- or the name -- as a "self-represenation" as such. It's more of a flag, a general statement of what we value, and not (necessarily) anything at all transgender or anything like that. Here at a site devoted to downloads and morphs and artwork and chatting models, the avatar can say "THIS to some extent is what I specifically tend to prefer."
My own gal is latex model Melanie Tipps aka Maria Biggs, who I found in the gallery in the (prohibited L) section at The (prohibited V), though she can also be found elsewhere via Google.
I like to think to think of her as "DruulEnvoy, representative of DruulEmpire."