Right now, we keep it for user to access it later. User can choose to delete the photo and all associated pictures, as explained in https://portraitart.app/help

We do not use the data for other purpose.

This is a good suggestion. We will definitely think about how to design the UI to satisfy both.

If you don't want a site to (possibly) store your photos, not uploading them in the first place may be your only _real_ option...