girino on Nostr: there could be a protocol where the content provider would set the rules, like ...

there could be a protocol where the content provider would set the rules, like minimum value and the renewal period, in a special event, and the relay would allow access if the zaps matched the rule.

something like
{...
tags: [
["minzap", 21000],
["renewaltime", "30", "days"],
["kinds", "1", "20", "22"],
...
]
...}

then the relay would apply the rules from this event to check if the reader could read events from this author.