Conclusion. Some random person created a bunch of Tor exit nodes doing some internal routing fuckery for :80 traffic. Anyone should assume their plain-text traffic is fine-pickings when over Tor (and probably any of the VPN providers anyway)
(If you are more concerned about traffic correlation perhaps be more careful where you are entering the Tor network)
(If you are more concerned about traffic correlation perhaps be more careful where you are entering the Tor network)