"RoS discovered a number of new findings, and we would like to thank them for their thorough and detailed report. They stated , amongst other things that: that whilst they found some issues, that: “The Mullvad VPN relays which were the subject of this test showed a mature architecture…” and “During the test we found no logging of user activity data…”
Why doesn’t the new UDP torrent protocol use STUN or any of the server- or peer-assisted ways of punching a UDP hole between two NAT-ed endpoints?