A lot of the moderation choices for this site have been inherited from StackOverflow, but given the differences between programming and theology, much of the moderation has already been honed to make it more appropriate for the type of knowledge we are discussing. In general, the moderation and rules ought to be done in such a way to produce the best possible questions and answers and suppress the frivolous, contentious, eclectic, autobiographical, and opinionated questions and answers. The goal is to allow the good content to attract experts who create good content, who attract experts.
It seems then that if this is the goal (rather than being as similar as possible to StackOverflow), there might be something we could do to make overview questions more useful. As it stands now, only individual users can provide an answer to an overview question, but except for the most surface level questions, most true experts (pastors in the denomination, academics, etc) will only be experts within a specific perspective and their immediate outside sphere.
Ideally, an overview question would have an expert answer from each perspective, Catholic, Reformed, Eastern, Lutheran, etc. but because of the format, each individual expert answer would be closed. This suppresses quality content.