I was excited for Commento and signed up for a paid plan. I even contributed code.[0] The author sent me an onboarding email which included the line, "please reply to this email (I'm a real person)." I replied with some questions about the service and billing, but he never responded. Four months later, nobody has responded to my merge request, either.

I canceled my service at the end of the month.

[0] https://gitlab.com/commento/docs/-/merge_requests/41