The simplest explanation of why this is a tragically bad idea for them can be explained by a single product: “condoms”.

If they automatically identify photos where someone happens to have left out a condom somewhere in the frame, and then use their likeness to advertise that brand of condoms (at the brand’s request), they will destroy any remaining trust in their platform among teens and inspire hostile legislation after the progeny of a public figure have their face used in such an ad without their opt-in consent.

This is one of the worst ideas they could possibly have come up with. It’s insane to think what kind of filter bubble they’re working within that permit this to proceed to the patent stage.