They are going to purchase a new domain for each bot?
Nip-5 providers would be incentivised not to let spamers use them less there whole domain gets muted.
Discussion
This ☝️
Clients should allow Users to filter/mute by NIP05. No NIP05 then I don’t want to see your replies.
Put the onus on NIP05 providers to not allow their service to be abused by spammers lest all their community get filtered out, then spammers only have the option of doing it from their own domains which can more easily be blocked and will quickly cost too much to be worthwhile.
What are the best tools atm to achieve this? Bot filters with captchas?
Using relays with paid gateways to become whitelisted.
https://relay.nostr.com.au for example ain’t relaying Reply Guys.
Cool concept! Does that really keep out bots or just make it more expansive to run bot nets at scale?