Random question, won't this just replicate a (social) credit score? I mean due to the following: * You can create new keys easily. * Therefore I could create a key not to pay a service then create a new one, to use another service for free. * This would mean service providers must somehow evaluate if they want to service you, you are not an "empty npub" * This means npubs needs some reputation * Isn't reputation really just a social score? Do I miss something?