|Syntactic Confectionery Delight
It's definately worth the time and effort, if you and others are seriously considering creating such a place for other languages. I think that not only gathering a core group of people to agree on sharing the responsibily, but also inviting possibly core developers or advocates of the particular languages to participate - (such as merlyn, Dominus, etc. have here). They would bring insight to particular problems&answers/meditations/discussions, as well as maybe making it such a community as it is here - a central meeting place for developers of that language.