This is nice for teams, communities, or organizations that are providing Nostr addresses for their team, community, or organization. You do not need to retain a secondary list of npubs allowed to write to your relay. You just need to maintain one configuration.
nostr:nevent1qqsfry0u0d9drcdf0xtz03ahtzrv72xargxhd956ya9jvcuujl760vcpzemhxue69uhhqatjwpkx2un9d3shjtnrdakj7q3qutx00neqgqln72j22kej3ux7803c2k986henvvha4thuwfkper4sxpqqqqqqzhhu3vh