Can I just point something out, whilst I'm sure it isn't the case here.. some can find it a little offensive for things like this to be asked publically, a polite PM would be far nicer and less offensive.
??? Asking a question about gender can be offensive? on a board like this? I am not always good with nuance, but offenses definitely get my attention.
But this site is about dicks and sex. It's dominated by males, and appeals to males who don't have a reason for faking facts like age, weight, dick size, preferences, or personalities. We do get frauds and fakers here from time to time, but the group seems good at sniffing them out--at least in my opinion. But are you saying that in a group like this, a direct question about whether someone is really male or female could really be offensive?
I'm trying to imagine a gender question in my local neighborhood pub giving offense. It is quite a bit like this site but w/o the photos. But in both places, being direct is part of the joy of the place, and just being a guy at least for me. For the life of me I can't imagine a direct question about gender upsetting a group that is mostly guys in a pretty male environment.