I think nostr:nprofile1qqsflmrj64um42nh9tu7w8nr3dffy9tjrt8xururype9ajle7alctvgpzpmhxue69uhk2tnwdaejumr0dshszrnhwden5te0dehhxtnvdakz7qg3waehxw309ahx7um5wghxcctwvshsj9rlg4 has been playing with that. 

 i do contents of notes, not users. but ai could be useful for querying that tool.