By techjunkie — Aug 05, 2023 It links to both our npub. When i click yours it jumps to your profile which has the nip-5.
As I see what you mean. I dont think the nip-5 is stored in every note json. But changing your nip-5 results in another ‘profile metadata’ note posted
Why link to it in a post? When you write a note, the note is linked to your account and the account is linked to your NIP-5 address already.