Queer polyfidelitous FTM here.
Not going to out myself as either in my app. I want to talk about my accomplishments first, and once I have their attention, I can tell them a little more about who I am. Going too personal too fast reads as inexperienced if not unprofessional, no matter what the content of the revelations may be. I used to know a girl who would practically introduce herself to new people as "Hi, I'm Katie and I'm a bisexual vegan marxist." You can imagine how that ended up limiting her prospects.
As with any coming out, it is not that I am trying to hide something or to trick anyone. I am choosing when is the right moment to disclose one fragment of data, just as I will choose when is the right time to talk about my family, my favorite color, etc. There may be some information that I never choose to share, because it may never be relevant to the relationship at hand.
Gauss talked about how important it is to be out to your doctor, but I have been discriminated against by a doctor because of my transness. So have other GLBT, especially T, folks that I know. It took several doctors before I found one that would use the right pronouns, even after being asked... and though I love my current doc, her office staff are still pretty rude about it. That is a reason that it is so important for more of us to enter medicine. Not just so that we can take care of all the GLBT patients, but also so that our peers can have experiences with people like us before they see them as patients. I'm totally out at my job so that my colleagues can ask me questions about trans issues, and learn a little etiquette, so that they are better able to interact with trans patients that come in for care.
EDIT: I thought about this all a little more. Here is my beef with the idea that we HAVE to talk about our sexual orientation/gender identity in order to be authentic. It is a variant of
@tantacles excellent dialogue above.
Can you imagine anyone telling someone that they have to come out as heterosexual/cisgender/monogamist in order to present a full picture of themselves. "Can you tell me a little about how being a married straight female relates to your career goals?"