Yeah, you're not going to see me go after a PhD student at a low ranking university any time soon. Do you have any idea how stressful it is to be a PhD student? If she has done something illegal it's on her supervisor and ethic committee's heads. That's what those roles are for.
On the face of it, it's not a bad idea for a project (leaving aside the exceution, legal issues and the very clumsy wording). Think about it for five seconds. We get accused of being transphobic all the time on this website. There has never been evidence. Great, so, here is the evidence. We know we're not transphobic. So what do you think will happen? Either the evidence that the student finds will be very poor, or it won't be there at all and the project will fail. This gives us real, tangible, backed up ways of saying the claims are false.
I've always been interested in whether someone could do a study to show that MN helps women in domestic abuse situations to escape. I would be sad indeed to see this result in some weird rule whereby we can't use messages on this forum for data. It's online, it's public, it's fair game. Yeah, they need to not use our usernames and anonymyse it all, but it is in the public domain and in theory a very interesting collection of sources to use in a study. Where else is there such a large collection of diverse women's voices? If we want our voices to be heard and trickle down into what the universities produce, there are worse ways.