tal on Nostr: I understand Mazin point. High-cost services will only be available to a select few ...

I understand Mazin (npub18kz…x5sz) point. High-cost services will only be available to a select few users who pass the stringent reputation test, which is acceptable. But why not implement both options? Why not allow users to pay upfront (a concept I'll call "zapfront" 😄) to specific service providers (based on reputation), and also signal a permission for a delivery of results via an encrypted DM?