There is a lot of amateur exhibitionist porn out there. Mostly of women doing things in public. It’s hard to say whose benefit it is for. As amateur may or may not be compensated. But I’m comfident there are a significant number of exhibitionist women.
uhh....a friend told me about some of this porn....so....uhh.
In all seriousness, though. There are things called "exhibitionism" that are indulged in by both men and women, but although they go by the same name, they aren't the same thing.
I don't want to go too far down the rabbit hole. For anyone interested, Nancy Friday's work is no longer ground-breaking or novel, but it's still valid and accessible.
Be that as it may, the acts that Rolfe and Emily's Cat are describing are unique* to males. Some of them are, or claim to be, transwomen. That's just reality.
SuburbanTurkey thinks it is very rare. So rare that we shouldn't let it bother us when we talk about bathrooms and who can use them. Well, he might be right. I'll take my cue from the people who are actually affected by it. i.e. the majority of users of women's bathrooms.
And to the point Darat made, maybe the next generation of users of women's bathrooms will view things differently than my generation or the generation (s) that have followed. When that happens, then I'll say there's no problem. Of course, that's easy enough for me to say. It isn't a problem for me, regardless.
*And someone, somewhere, can find some female doing an equivalent thing. Go home. That's missing the point.