nostr:npub12wfyg7nljr8h25apv0c2fvqd2l5dcmdymc9d3x7zdy2xtzztaysq7f8kwl It's a centralized list of webfinger ids with an incremented value, not really that big of a deal if you ask me, it's not required and only provides a benefit to admins if they opt to use it.