"We cooperate with law enforcement agencies when required by law. While we do not inspect traffic content, we will provide connection logs and IP address information in response to valid legal process (such as a subpoena or court order) to assist in investigations regarding illegal activity."
https://tunnl.gg/assets/index-Bjpn0hFX.js
If the requesting party knows it's possible they might ask for traffic to be logged
I can also deny, if I don't consider the case valid or shutdown the hosted service if I want to. I plan to open source it anyway within the next days.