This is not true at all. I'm active in multiple NSFW AI Discords and Subreddits, and looking at the type of material people engage with, almost all of it is very clearly targeted at heterosexual men. I'm not even aware of any online communities that would have NSFW AI stuff targeting mainly female audience.
Women aren't in NSFW discords and subreddits - as you probably know, any "topical" social media forum of any kind is mostly men.
They're using Replika and other platforms that aren't social. When they do use a social platform it has more plausible deniability - book fans on TikTok is one, they're actually there for the sex scenes.
