How does this help you identify duplicate accounts? If the original photo is deleted, do you just trust the model to be correct 100% of the time when it rejects the newly created account? Or do you keep the original photo and allow a human to make a final decision?
There are a million other signals for duplicate accounts anyway. Location, OS, device fingerprints, communities joined, etc. If those match and real name matches that’s enough data.
And if a few people manage to slip through it’s not really an issue. They will either get banned again for the same reasons or not violate the rules anymore so who cares
