I haven't read this article and don't know what's going on yet, but it wouldn't surprise me at all if Steam was run by a bunch of uptight prudes.

What I want to know is why they're cracking down on visual novels and not on shit like "Super Seducer"?

https://motherboard.vice.com/en_us/article/evkxdk/steam-banning-adult-anime-visual-novel-huniepop