If a child purposely sends Facebook a picture, it's more like a minor stealing a beer rather than buying it legally.
No. FB is CONSENTING to you uploading the image to your account. They arent age verifying you. That's a bar selling (providing a service) to a minor that it shouldn't.
No. FB can't hold child pron with or without the child's permission. Nor can it claim to be 'blissfully ignorant' that they were children.
They don't hold on to the image though. It's stored as a hash.
This is the bit I don't believe. This is the type of thing that comes out in 7 years time and Zuckerberg stands before a panel of senators saying "lessons will be learned" ... meanwhile they have had 200 million child pron images stolen from them. FB has a lot of previous with this type of thing.
But this just... I mean, facial recognition is probably better. Just whitelist who can share your face. Anyone not on the list can't upload the picture.
It's not my face the algorithm would need to recognise ![Cheesy :D](/Smileys/default/cheesy.gif)
FB have said nothing about introducing zoom and post production effects to images.