For some set of people it would be a problem, I think for book reviews that’s a tiny set, not to be dismissive of them, but still. For other types of applicat

For some set of people it would be a problem, I think for book reviews that’s a tiny set, not to be dismissive of them, but still. For other types of applications you’d want to have a better system, like a writing platform. But still, there’s ways to do it. You can validate the high res copies of whatever you want to validate, then make a hash using a few key numbers, in partial. Stuff like that gets you close to ideal, even the worst case break would expose almost nothing, and you’d prevent duplicate accounts. Only risk is losing the documents during validation before they’re deleted.