I do have a separate account and name for pretty much everything I do relating to transgender. I'm not sure why. IRL I am pretty out about it and I'm too old and too unemployable to care about any work related problems. But I do have some imprint on the intertubes under my real name and I suppose I'm not sure how the that would relate to my T status. The only person with access to my trans id online is my SO and she knows everything I do because I always tell her.
Actually I think I do know why I have a secret trans identity. There are just a whole lot of boring and creepy trans chasers (and cd chasers) out there that I just don't want to have to tell that they are boring and creepy.