Got to admit, I have noticed there has been an explosion of AI Generated Images at Deviantart, and many, if not most, of them are 'premium' accounts, meaning you have to pay for access to the X-rated stuff.
I don't know if I'm all too happy about it all, and I know that's kind of the Pot calling the Kettle Black and all, as the same thing was said about us Poser/Daz Studio users.
But at least I actually pay everyone who creates the content I use to make images (and I think my stuff is so bad, I don't charge anyone for it ^_^). From what I hear, unless you specifically get the AI Art generator to learn from images you have drawn (or even generated with Poser/Daz), it will just go out and sample untold numbers of images made by other pencil/paper/paint artist to make its version, without crediting them (I don't 'credit' my producers either, but the money I gave them is enough credit, I think ^_^)
I don't know who told you that, but AI art generators don't "go out and sample" art it finds on its own. They're trained on specifically built art sets by the developer or by the user. The training sets need to be at particular resolution to work, and for best results the person assembling the training set needs to add meta tags to help the generator learn what's in an image. Without a good training set they don't generate anything worthwhile.
The issue about crediting comes from artists when they think their images may have been included in training sets without being asked for permission.