I am happy to take the lack of response by all the people stating they accept transwomen as women, as 'No, clearly he is a man and I cannot explain it'.
As it so evidently is a man, and you evidently cannot explain why you think he might be a woman. I do too. I understand you are just trying to be nice.
But this isn't about being nice.
And it is about the ability to say 'that is a man' that this thread is about.
Anyone who can get a court order to get your details if you say 'That man is a man and I know because of x, y and z' in order to doxx you or publicly call you out or get you fired, is what this thread is about.