It's the vision of the net at the time of the transition to web 2.0. The web as a giant database of the world's knowledge, but now curated not by experts on their own little websites but distributedly through the collective wisdom of humanity. Think wikipedia, imdb, tvtropes. SO's gamification is primarily geared towards cleanup, not participation. However, databasing questions never really made sense. It works remarkably well, but the subject is just too open ended. What we really needed was a collective effort to produce great, searchable, navigable documentation. Instead, we now have a collection of hyper-specific, often outdated snippets that do not educate, and the effortfully produced helpful introductions, overviews, and explanations you want to read are dying disorganized somewhere on diverse wordpress blogs.