I would not have known she was trans if it weren't for random commenters randomly saying "she's trans and just wants to blend in"

I agree with that statement, but consistently calling it out kinda seems to be having the opposite effect.

What's the negative stereotype we're worried about here? "trans women are hackers" or something? Linux secretly makes you trans?

The banker thing would be bad optics because of conspiracies about it, but I'm not aware of an equivalent.

How magnanimous and thoughtful of you to try and make it seem like your original comment was about protecting trans people who all just want to blend in and not be seen.

Except, you know, these specific people are openly trans and explicitly choosing for themselves to make a point about it.