There are two trends around NSFW images.
(1) If it wasn't for the second there would be a gold rush of firms trying to replicate the success of OnlyFans, that is, there is already a huge business and the possibility of a much larger business.
(2) There is also increasing trouble around NSFW images. Consider CSAM. The trouble with CSAM is that CSAM is documentation of child abuse and that's why it has to be prosecuted. On the other hand people don't really get in trouble for child pornography which is hand drawn because the forbidden desire isn't the problem, the original crime is the problem. With AI image generation people can generate unlimited quantities of "child abuse free" CSAM which might reduce the market for real CSAM but will vastly complicate the problem of managing CSAM.
I think people will find other reasons to crack down on pornography. As ugly and stupid as traditional pornography is (e.g. consider the 'pigface' scowl that was routine in Penthouse and Hustler and is still common or the many conventions that I think are completely unarousing but seduce people in the perverse manner of 'this is common in pornography so it must be arousing'), I suspect the OnlyFans model is actually more harmful to users.
Payment networks are cracking down, for instance the polymorphous perverse site Danbooru got cut off. AI generated porn is just going to lead to more fear of things getting out of hand and swifter and more complete crackdowns.