I think a wonderful example of how Reddit can work amazingly is /r/askhistorians. They require academic sources for answers, and general expertise around all an

I think a wonderful example of how Reddit can work amazingly is /r/askhistorians. They require academic sources for answers, and general expertise around all answers, at the expense of requiring heavy moderation. This does not apply for general topics (could not apply in /r/news for example), but if a community can be created around a specific topic, and that topic is amenable to this style of expertise filtering, it has been shown to work well.