Maybe all the sites without tight enforced rules got their discussions derailed and you never heard about them? See "Optimizing for Pearls, not Sand": http://b

Maybe all the sites without tight enforced rules got their discussions derailed and you never heard about them? See "Optimizing for Pearls, not Sand": http://blog.stackoverflow.com/2011/06/optimizing-for-pearls-not-sand/ http://blog.stackoverflow.com/2011/06/optimizing-for-pearls-...