Actually that is not really how Lemmy works. As long as at least one user from here subscribes to a community from there the community is right back in All here. And if no user is allowed to subscribe to something there you don't really gain anything from federation.
Actually it would still show up in All as long as at least one user on this instance is subscribed to a community on the other one. Just not in Local.
The problem is that some of the categories of images that people might not want to pop up in their feed are very vanilla, e.g. dick pics are not kinky or extreme, just not something a lot of straight guys and lesbian women want in their feed. So should they also not be posted? What about feet? Some might not want giant pictures of feet on their screen. Or maybe rough sex? Some people also really don't like cuckolding, so no pictures with captions or post titles for that? Where does it end?
I very much doubt the concept of celebrities (at least the ones who are celebrities largely based on looks or visual performances in general) will survive the AI development to the point that is the premise of this post.
I don't think that it will ever fully take over because part of porn is selling a fantasy and that doesn't really work so well if no real people are involved in the production.
@taladar
@lemmynsfw.com