It cracks me up whenever people mention Nostr and privacy in the same post. PGP = Pretty Good Privacy. This is the most public social network. You should specify you're talking about Nostr DM's, which are stored in multiple public folders leaking all your from/to/when/how-often meta data.

Sure it's like PGP... if anyone at all could log into your mailbox and see everything except message content. Could poke around, see who is sliding into your DM's at what time of day, who messages more, how often, etc.

Go on, login with one of the big shot Nostr accounts' npub and you can tell immediately which opposite sexes are being engaged how often.

Oh, and the 'original cypherpunks' pubkey cryptography = 1991? Does Clifford Cocks in 1973 not count because he was working for the Man? https://www.wikiwand.com/en/Clifford_Cocks