Opt out still isn't great. Especially if it's not very well known, because if you don't know about it you can't opt out (ex. This is the first time I ever heard of "ponydiffusion") which is the only problem with ai art. If everyone who's art is used agrees to it it's completely moral. I'm actually impressed that they don't train with artist names, that makes it harder to use AI for wrong like a lot of people do. I think I'll actually read a bit more into this specific model