Saw cool things like that when I was back in fandoms. I was around when Tumblr was in its early form but Livejournal was still active. it seems that fangirls began to feel comfortable to claim they were lesbians and bi. When Tumblr became prominent so did the trans claims, then came the other genders. Also, a lot of these girls really liked gay men (almost all of them wrote male/male fanfiction lol.) I'm certain many of the stories had publishing problems - but there's no doubt the girls looooveed the attention. The more stories they wrote, the more attention they got. The more likes. You became a superfan (yes, that's a thing. There are famous fangirls lol).