To prove that, I'll use myself as an example. I don't hide that I'm fighting for LGBT rights from the people I know from my school. I wrote articles, took this subject for an oral presentation. It's even worse on Twitter where I'm saying us when speaking of trans people, gendering myself as a women, I RT many thread/tweets/articles. But : I never said that I was trans. And because of that I'm almost sure they think I'm a cis het man.