I was just reading through the interview process for RED, and they specifically forbid the use of VPN during the interview. I don’t understand this requirement, and it seems like it would just leak your IP address to the IRC host, which could potentially be used against you in a honeypot scenario. Once they have your IP, they could link that with the credentials used with the tracker while you are torrenting, regardless of if you used VPN while torrenting.
Because FEDs and movie studio lawyers would use anonymous accounts. All of these requirements exist for one reason, to protect the site and it’s users. If you want anonymous then you should stick to public trackers.