"Sorry everyone, my private key got leaked and I had to revoke it, use this public key instead, also buy this crypto" --Really, really Elon Musk

Cryptography and human behavior are incompatible.

I mean if you think about it for 5 minutes sure. But look at what bluesky is doing for example around decentralized moderation. It’s not really been an important problem in the global sense to get cryptographic attestations by neural parties for asserting what they have witnessed or analyzed for evidence of falsehoods

I mean, if I control your DNS for a few moments, there are trusted providers that will issue a TLS cert to me. Things like this happen all the time for companies that hopefully have a security officer. Individuals have little hope here.