This. If it weren't for sites exposing their sources I wouldn't have been able to teach myself what I know/tinker around when I was just a kid with a dream. This just seems excessive, and one of the employees's responses below about people who show their code not having good jobs seems exactly like the response I'd expect from someone with this mindset. Maybe I'm not understanding this concept, but I'm with Dan on this one; we should be using our code to teach others.