> Welcome to real world.
Have you READ the fucking article, or just came here to post your "cool" one-liner reply?
Because in the article he mentions the REAL WORLD case of Experts-Exchange. And he mentions his hard earned REAL WORLD experience that such things don't end well as commercial entities, because when they are pushed for monetization they become closed and/or ad-circuses.
He also suggests using a distributed model for such sites.
You know, like, Wikipedia, which also exists in the REAL WORLD, but is not in it for making money with our knowledge, but for building a non profit community for knowledge sharing.