Other clients would show the checkmark as long as the fake accounts are associated with some domain name. Users need to manually verify that the domain is the intended one.

> But yeah I never understood the get a nip-5 at randoNostrappDomain.com services… as if that meant something.

It's not *supposed* to mean anything.

Imagine meeting someone in person and wanting to get them to follow you on Nostr. You might not always carry an electronic device, you might not always have a piece of paper with your whole public key and you might not remember it by hart. Giving them something mnemonic, for the sole purpose of finding you, is easier.

Multiple addresses are important for several reasons. For example, some groups or institutions might give a NIP-05 address to member so that they can be found on Nostr by their name (like school email addresses, although it may not work well at that size). A person can belong to two groups or institutions and still wish to have only one account.