Well I agree the proliferation of formats is a problem, but I think it's an intractable one. General languages solve the problem of "I can't use config languag

Well I agree the proliferation of formats is a problem, but I think it's an intractable one. General languages solve the problem of "I can't use config language X because it's missing feature Y", but for every project you bring on board you lose one because they don't want that much power in their config files.