If I were a transgender person
Thanks for "cisplaining" what a trans person would feel.
As a trans person, I would rather have a space where everyone's identities aren't questioned, than some kind of (potentially hidden) requirement to be in place that your identity has to be "real" in some way. If "normies" have trouble respecting trans people just because we also happen to respect other identities in our spaces, then shrug. If fellow trans people are uncomfortable with that, they don't have to be part of this space, either.
In the end, you're once again making this a much bigger deal than it has to be. Someone broke the explicitly written out rules and got bonked for it. And if you think this person is a troll, they sure are a good one with how much they're being fed with all these posts.
Makes me wonder if the "I got banned" posts are just a continuation of the trolling to make as much drama as possible.
Move on. There's trans people dying out there. This isn't worth fighting over.
Common cause for that issue is you mixing up the website/forum account details with your game account ones. Unfortunately those are separate. If you got the game from itch/Humble you should've gotten an email with instructions to set up your game account, if I recall, and you'd download it from there, rather than the website? Feel free to poke support if you're not able to get things working.