If it's straight outta whatever AI program I'm using I don't sign it, only on the ones I've worked my butt off in Photoshop/photopaint/Daz/Poser or whatever to get them to what I want. And if it was generated using prompts I wrote from my own original stories and poems, bet your sweet bippy I'm gonna sign it. No matter what the U.S. copyright office has to say on the matter. But I wonder how that's gonna effect Shutterstock now. Seems their "ban" on AI images by uploaders was because they wanted to sell that stuff themselves. https://www.engadget.com/shutterstock-ai-generated-stock-images-dall-e-133903619.html