The emphasis on disclosure is interesting. I think I can see both sides of it (as I'm sure many can) and I lean toward one side (not having to disclose), but am not firm in that position. Pretty sure if it were me, I would disclose. But also pretty sure I would have peers all around me noting how my insistence on disclosure hasn't worked out so well, now has it?
IMO, the whole 'you must disclose' thing doesn't come up all that often for heterosexual mating. But it could. Some might say 'it should!' In my experience, it does not, and my personal experience has been to always disclose items about myself that relate to sexuality and long term commitment. I honestly cannot think of a relationship where that has worked out, but do realize I just haven't met the 'right person' yet. Great, so my desire to be as upfront and honest with people about 'who I am' when it comes to sexuality/dating has noticeably resulted in (put bluntly): no, no, no, no, no, no, no, no, no, no, but hey maybe the right one is out there for you. Whereas I get to observe, constantly, the (heterosexual) people that withhold information are experiencing: yes, hell yes, for sure, let's have a family together, coveting others is fine/normal, it's cool that you sleep around and I don't know about it - you're still hot to me. So, sure that is honestly frustrating, but because sexual relations have gone way down on the desirability scale for me, I'm now fairly happy with the path I've been on. When caught up in the illusion, that eros love is the best of them all, it was frustrating. Glad I'm no longer (as) delusional.
To me, heterosexual mating/dating relies on a whole lot of assumptions of 'what is normal' and given rates of breakups and divorces, I think it is incredibly well known that there is no 'wonderful version of normal.' The wonderful version is fairytale stuff and extremely rare. Likely based on a different (more brotherly type of) love than on something resembling eros.
This notion that transgendered people 'just are different' doesn't fully jive with me. Every person is 'just different' and in reality, just different enough that if it were crystal clear to everyone (all the time) what they are actually like, I highly highly doubt long term commitment would be as popular of a notion as it currently is. I actually think it would be seen as undesirable, and am actually surprised it is not given all that we've collectively come to understand about mating.
With all that said, I do think disclosure has a viable point in all relationships. And question asked earlier on this thread has me wondering how a transgendered person might respond to situation where they are seeking transgendered person and person comes along trying to pass themselves off as transgendered, but then later it is discovered they are not. Would that be considered BFD to the transgendered person and thus say that disclosure must always occur, or would be it be seen as entirely their issue for having expectations on what romance/dating means to them, and not up to anyone else to answer directly to that when not asked in precisely the right way for another to respond 'honestly?'
I'd like to think that all transgendered persons on this thread, if asked directly about a question, such as "do you have a penis between your legs," would answer directly. But also would strongly prefer that this sort of question be asked in a caring manner and would say if it is not, and/or person responding feels it is not, then that alone could be grounds for not responding directly. Though, it wouldn't make sense to me to lie, but could be reasonable to say something along lines of, "I'd rather not respond to that question at this time." Withhold the information, but do not directly lie.
And to be clear, if not asked, then I think it is actually normal to not disclose.