Tineye found (among many other sites) that her name is Kayla Erin and her Deviant Art is here https://www.deviantart.com/itskaylaerin/art/Velma-726358512 and this page has more pics from the same set https://cosplaythots.com/p/351

That was Jeri Ryan.

That might be part of it but I think there is also a sort of sameness, certain aspects that are always the same in the generated images and more varied in real ones. Possibly related to the averaging of all the input data.

Is it just me or do all the AI generated porn images have something in common that makes them immediately recognizable? I am not quite sure what exactly it is but they do all have some quality in common.

There might be a need to handle the cross-community spammers on an instance or Fediverse wide level though, in particular the ones who post to any porn community with the same title and picture regardless of the picture/title being on topic for that community.

The downside of that is that a lot of OF content is posted to dozens of communities and this fact is the main spam problem with them, not necessarily the content in any particular community on its own.

You can easily look up the owner of the IP address space to get the provider.