Yes that would be perfect! I was thinking of a something like lobbying the Nostr-verse for a NIP-5.1, where you can add multiple NIP-5.1s to your profile to denote memberships in communities (so as not to encroach on the NIP 5.0).
But being approved for a NIP-05 that you simply don't use serves the same purpose (admin still has to put your npub in the well-known json, all that.) Plus your green-lighting by that community would not be visible on your profile, which might actually be better.
Good idea, convince the team, I'll use it!