lol, that hurts... No, https://nostr.watch, the author of NIP-66 and have been running monitors since 2022. I onboarded the first wave of nostr pubkeys with relays.
Bigbrothr is relatively new and doesn't run any monitors AFAIK (unless the unstable one I mentioned is VincenzoImp (npub1szg…v73y)). Bigbrothr is more of a monolith for research, nostr.watch is a battle-tested distributed fuzzy state machine. Served over 1 million unique users, 150 million requests over 3.5 years.
https://status.nostr.watch
