I don't disagree with you but the solution is quite simple and not in any of the quesitons you asked.
Post no personal information, never use your name, your anything.
Use existing e2e encrypted solutions for "direct messages"
Don't be fucking retarded
This nostr shit is fine for what it is (public pseudonymous discussion) but it will fail miserably if idiots use it for something it isn't (social media for fucking cancerous e-celeb influencer wannabes sending you good vibes)