StackOverflow is not a site dedicated to hosting discussions on "interesting" topics. It is a site dedicated to getting the highest quality answers to technical questions. And it does that marvelously. As a byproduct it also fosters the sort of community that ends up providing interesting discussion from time to time, but if the site became about that it would not last and it could easily cause a derailing of the site's main purpose.

Just because something is "good" doesn't mean that it belongs on SO.com.