Think of it as nonconsensual AI generated CSAM. Like nonconsensual AI porn, you take public SFW photos and use the AI to generate explicit images using the provided photo as reference for the abused victim.

As for the over share library, think of all the pictures you see of peoples’ kids in your social media feed, then consider how few people take proper privacy controls on what they post (or just intentionally post them publicly for laughs/attention). All of those images can be used as the basis for generation nonconsensual AI porn/CSAM.