Sorry to hear that. I agree that it's kinda quiet, given the size of the DevTools user base.
This mailing list and Stack Overflow are the best channels, IMO, because they leave an archive of questions / answers that will hopefully help other people in the same boat.
I love to do community support work (it helps me write better docs) but unfortunately I'm split between a few projects. I'll see if I can free up time or if anyone else can help.
I'm open to ideas on how to encourage others to contribute more, too