Relay probing is becoming a reality (I know nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qgnwaehxw309ac82unsd3jhqct89ejhxtcpzamhxue69uhhyetvv9ujuurjd9kkzmpwdejhgtcppemhxue69uhkummn9ekx7mp0qyf8wumn8ghj7mn0wd68yat99e3k7mf0qqswwud0pvzu362lehm0av6sq4zd97cue5uy0z8f7jgtk0hz368dvmceue66m nostr.watch has probably been doing this for decades now) https://video.nostr.build/b462b6568e3cb10410cd5c25a41f61407895d09ad806f354657140c15ddab36d.mp4