I’ve been using co.mments for over a year and they seem to have these periods of inaccessibility from time to time. But then all of a sudden it starts working again. It would help if there were some communication from the staff(person?) recognizing the issue and saying if they have plans to resolve it.

I tried commentful and it doesn’t work at all. I don’t even know why the site is still up. I might have to try cocomment. There were some limitations when I first looked at it but they might have improved by now.

Good luck!