I think of NIP-05 basically like how attestations worked in the original Iris (cc nostr:npub1g53mukxnjkcmr94fhryzkqutdz2ukq4ks0gvy5af25rgmwsl4ngq43drvk ) except it can also help your account be to be more discoverable.

Maybe I get an NIP5 from my church, my gym, and my hometown.

Each of these would not only attest my profile as someone that is “known” and (at least somewhat) trustworthy, but it would also help to increase the findability of my profile.

Now it could be that this is better solved by a different method and NIP5 should just go away. Maybe this can be solved by my church, gym, and hometown each just running exclusive relays (write for members, read for all?) and NIP5 usernames aren’t needed?

But if someone can know me by multiple usernames, I think that does help with the discoverability aspect.