We were musing on something similar but it needs widespread use of NIP-03 to be effective and lots of client coordination:

nostr:naddr1qqgrgdpexuenxvenv4jxxvf5xf3rqq3qnkfqwlz7xkhhdaa3ekz88qqqk7a0ks7jpv9zdsv0u206swxjw9rqxpqqqp65wrpemue