I'm the guy behind it. Was this with commento.io or were you self-hosting? I'm truly sorry it didn't work out, but if you want to shoot me another email, I promise to respond this time.

So there's a whole bunch of improvements actively going on the behind-the-scenes (essentially a Commento v2) and I hope to announce things soon. I know support has been lackluster and I intend to turn that around too. It's certainly not dead :)