Pay-per post relays with @NWC would be awesome
We likely need a messaging scheme to let Clients know when to ask users to pay if it is per post.
What about pay-per-post with free replies? This would ideally cover costs without creating a barrier to discussion. Though it could incentivise bad reply behavior to circumvent the payment. It could also proxy zaps for reposts and quotes, in regard to surfacing "valuable" notes.