Maybe I’m biased due to the content I subscribe to, but Patreon seems to be going for a more sophisticated aesthetic. This comes through even in the name. The word Patreon conjures images of the Medici’s and “elevated” art forms. I think if they started to cater to the NSFW side of things it would result in brand confusion for producers and consumers.

https://www.patreon.com/policy/guidelines is the official rules.

A summary:

* mark horny stuff as 18+

* all horny posts must be patron-only

* drawings are okay but no photos/video of actual people going at it

* no bestiality, rape, kids, incest, necrophilia, or dubcon/noncon

As a creator of horny art I do not look forwards to the day when Visa/Mastercard/Apple/Google/etc leans on Patreon and says "hey we banned all horny content, you can either ban it too or you can quit working with us".