I know about that, but it's basically the same thing since reliable sources in the wikipedia terms are a set of sources that we collectively decide to trust. What's interesting about wikipedia sources is that it won't allow you to directly quote a person even though they are a well known trustworthy information source. Instead you must back up your statements through a 3rd party (usually media-related) entity. This is both good and bad, considering that journalists may not be the best at evaluating certain information, especially in the science or politics field.