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PSA: You can't delete photos uploaded to Lemmy. So don't (accidentally) upload a nude
(tech.michaelaltfield.net)
This is a most excellent place for technology news and articles.
Often they delete all images during the time frame of a CSAM attack, as that has been the only real feasible way to ensure images weren't left behind. Though I think a few images have started using AI detection methods to remove images like that automatically (read up on that here and here), also Pict-rs now has a Log linking uploaded images to the user, so now images can be purged with the users.