Cool concept! Does that really keep out bots or just make it more expansive to run bot nets at scale?
Using relays with paid gateways to become whitelisted.
https://relay.nostr.com.au for example ain’t relaying Reply Guys.
Discussion
So, basically you pay to not get messages from bots and to be able to post on a bot free relay. Nicely aligned incentives.
Yes it keeps out the bots. They have to pay to have their npubs whitelisted and they ain’t doing that.
Spam only works when its marginal cost approaches zero.