we need a relay npub blacklist like SPAMHAUS for SMTP (email IP)
nupbs are quickly created so won't work
helps for IP addresses. not 100% for sure
Ip's are easy too
what's your idea nostr:nprofile1qqsr836yylem9deatcu08ekfj8qj9f2aypq8ydt0w8dyng8zp8akjsqpr9mhxue69uhhyetvv9ujuur0wd6x2u3wwpkxzcm99uz2gxag ?