By the way, I know the answer.

I advertised for pre-nominations for a month on transsexual fan boards, the Grooby sites, Twitter (@groobysteven), tgflix.com and press released it. The models should have and could have lobbied their fans to get pre-noms in as well as done it themselves and the fans should have simply done some nominations for their favourite models or scenes. They didn't - they were too lazy, they were too complacent or they simply do not have favourites among the models.
This is the same process for AVN and Xbiz - none of the girls are putting themselves out there and none of the fans are pushing models forward. I've nominated black models in the past for shows and they've appeared on the bill (this year I didn't as I had others I wanted to push).

This site has about 50% of the membership of Shemale Yum and an extremely more active forum. Yet only a few dozen people have submitted for Black Tgirls Model of the Year ... when hundreds have submitted for Shemale Yum Model of the Year.
Lazy. Complacent. OR just no real "stars" sticking out?
Nominations for BTG of the Year with the $1000 prize are still being taken.