Over the course of the disclosure of the connection between NordVPN, Tesonet, and possibly ProtonVPN, Proton's story kept changing. They said contradicting things multiple times. They locked the Reddit thread. Why did Proton keep changing their story if they had nothing to hide? I will keep reminding this every time the issue gets raised. There is a compilation [0] of changing Proton's responses and them successively admitting more and more things not in their favor. The compilation starts at the part called "Online accusations fly".

[0] https://restoreprivacy.com/lawsuit-names-nordvpn-tesonet/