I don't see the active question as: are there valid uses? Maybe. Perhaps. But how can we create a tech so overpoweringly capable of destroying privacy at such a large scale responsibly, in a way that doesn't have horrific side effects?

Ideally what I'd like & have suggested is that citizens be able to get attestation of their content at their desired level. I should be able to get anything I write signed by varying levels of government, federal, state, or county, or neighborhood. I should be able to opt into how much identity to share: name, initials, some rotating psuedorandom identitifer, age bracket , income bracket, other core data.

I've stated this repeatedly as I think the baseline of what I think a democratic society should offer, a way to enshrine real speech of citizens as citizens so desire. That would be a real service. What we have here is a vile screwing over of society by hostile powers thieving our liberties from us, locking down the world against humanity for their own sad shallow pathetic ends. These aren't pearls. These are basic rights to be human on this planet. Thanks.