We are considering to use gamedev.stackexchange.com as the primary support channel for the html5 game framework craftyjs. Would this be appropriate? Look at our google group to get an idea of the kind of questions.
I think it would be appropriate. But answering the same questions on SO (where they would fit too) instead could give you more visibility. When a developper has a programming problem, he will naturally go to SO first, even if he is developping with a game frameword.