rich1.0TheOneWithAReallyLongName (npub1f2…3wnvu)https://nostr.now/npub1f2d7g0p206c5nqjqfhftvrxg8u25gy6egqpv290qk27nc60k0fms43wnvunjumphttps://nostr.nowI don't see that as viable. Either you block all npubs your contacts don't already trust and close yourself off from the public, or a determined spammer will just freely cycle npubs, potentially going as far as a new npubs for every message, and invalidating the web of trust.