That highlights one of my "concerns" about AI training sets. There seems to be a very real risk of accidentally adding an image that you have no rights to, so what happens if someone finds out and demand their image removed from all models trained on that image?

You can't really back an image out of a model, you can only retrain without that image.

Creative Commons should add a new license that prohibits the use of ones work to train AI.

We don't store any images used for searching.

We are building an opt-in list, because a lot of people do want to be able to prompt AI with something like, "a cat in the style of me" or "me riding a dinosaur". That will be shared publicly, of course.