Yeah, but anything you create automatically has a copyright, so for example this comment is not in the public domain. Its use is limited to the context I am using it in; that is, I expect it to be copied for federation purposes, but I wouldn't say that AI is covered in this context, just genuine readership, moderation, and bots that are 'part of the community'.
At least that's the EU stance afaik. Like if I saw this comment on a billboard somewhere I'd see that as a clear breach of copyright and even privacy.
Well, it's one thing to say an 'artificial agent' looks at someone's work on deviant art and learns from it. It's another to use that to make money, as I personally can't imagine many of the posters would have been on board with that.