> Oh, they can't express themselves?

Misusing moderator privileges to modify someone else's profile to mock their gender identity isn't exactly what normal people call 'expressing themselves'.

> because mental illness makes some people care a fuckton about gender?

It's genuinely amusing to see a bunch of people in this era hold neolithic-age ideas about what mental illness is. If you haven't noticed, the concept of mental health and gender identity has changed a lot in the past century.