I think it’s not only incorrect, it’s also confusing. “Why is my username so weird? And why was it chosen for me? How do I change it to something sane?”
npub is a username strictly only in the sense of being a unique identifier, but is neither the value people use to locate/refer to users nor is it human readable.
Eventually npubs will probably be abstracted away.
I’m not sure if it is confusing. I guess one way would be to actually test on someone.
Give helper labels that assist in understanding without changing the definition of an npub;
And as a secondary experiment remove the signup step entirely and just generate keys for user, then explain what just happened.
Maybe ‘shareable identifier’ for npub.
And optionally if they want a Nostr Username, let them setup a NIP-05. It’s literally just a username in all aspects (I think) - login, sharing, search, comparing accounts if identical other info, auto-complete, etc. ability to setup a username later.
And then secret/recovery/master private key (or similar) for nsec. Ideally nsec backup is an in-app action after initial setup - “keep your account safe, sync to cloud, save to password manager, write down seed words”. Setup 100% complete.
