I've used Mumsnet for years. I've seen threads that make me laugh. Threads that bring a lump to my throat. Long running threads helping women get legal advice re nasty neighbours, or escape abusive relationships. I've seen crazy zilla threads and know all about having your house in Mexico pinched.
I've seen many many women say they want to retain the right to safe spaces. I've seen gender critical views expressed.
Whilst I've seen screenshots of transphobic comments from here for use on other platforms, I'm savvy enough to know that these can be planted for just that reason
Hand on heart I've never seen a genuinely transphobic comment. The slur that Mumsnet is a transphobic platform is disgusting, it's generally a very well moderated place.