But they're for different things in Nostr my pubkey is my identity I want all my posts linked to. Its not like bitcoin where I don't want transactions linked. And in the cases where I do want unlinked identities, just generate a new pub key.
BTW, I did ask fiatjaf to add that feature and allow people to rotate key s in every message. It would be a very simple change. He rejected: https://github.com/nostr-protocol/nips/pull/126
Discussion
What if the default was unliked messages for everybody and only your followers can put them together? This is possible. It was a choice to reuse the public key.
Someone can always fork the code 🧑🏽💻