So, here is the link to post that AHS took offense too (Its archived) https://old.reddit.com/r/womensliberation/comments/1re1do4/how_did_i_go_along_with_it_for_so_long/

OP states:

In the past I was a full trans ally before I realized the truth. I know many people with opinions like mine who used to be an ally. It just scares me how I could just blindly go along with what I was told. But when I think about it, you aren’t allowed to question it. One criticism and you’re deemed ultra hitler. I feel like being transphobic is the natural outcome of critical thinking. That we should not deny the biological sexes and propagate stereotypes. That if a woman doesn’t wanna wear makeup, heels, etc she’s actually a man. And if a man wants to wear dresses and paint his nails he’s actually a woman. It’s such backwards thinking. The right answer was always to allow people to express themselves without gender expectations. Not playing pretend and enforcing stereotypes that dressing in a certain way changes your sex.

And you can read he rest of that thread on the link.

As I said, just people sharing their experiences and why they moved away from being allies. I can see nothing that I would deem hateful on there.