UNCLE ROCKSTAR on Nostr: yes, but we're talking about existing users. hence why I'm saying - when you can tell ...

yes, but we're talking about existing users. hence why I'm saying - when you can tell me how we can migrate our existing npub to new ones and clients effortlessly switch your notes, reputation and followers - then key rotation is implemented on Nostr. Everything else is a cope.

And this is classical pattern with devs wanting to keep the system/protocol simple, so they start throwing fancy terms to muddy the water and avoid adding complexity required to properly handle real world use case.