I get the distinct impression most transmen are women who feel alienated by traditional feminity and overreact. These women used to become tomboys or butch lesbians but now they're pushed to be trans.
On Tumblr there is an event celebrating the pairing of two fictional characters that involves prompts, one of which is lavender; all you need to know is that one character is male and the other is female:
That's SOP for people that write RPF. I think they call it not breaking the fourth wall or something like that? Iirc Hockey RPF had a scare about that a few years back.
Edit: You can read about the Hockey autism/wank here.
Kinda, both sides generally have the right to introduce evidence within established procedure but either side can contest it. The negotiation is done with the judge who makes the final decision.
It's the last great taboo for which there is no legal prohibition against depicting. Child porn is highly illegal; bestiality porn is semi illegal so incest porn is the only outlet for this kind of subversive desires.
I have a theory that Tumblr and 4chan are functionally the same site just that Tumblr caters to the neuroses of women and 4chan caters to the neuroses of men and that's where the differences emerge.
We Kiwis aren't a moralistic bunch, but we do like making fun of people on the internet. Those things aren't really interesting from our perspective, but when people get weird about it, that's when we take notice.