In my opinion, GitHub is not at all a "code portfolio". It is a "social git application", or a "social collaborative version control system". My GitHub page is

In my opinion, GitHub is not at all a "code portfolio". It is a "social git application", or a "social collaborative version control system". My GitHub page is not my portfolio, neither a Coding Museum of Myself. GitHub is made for easily writing and sharing code, not __showing off__. Except from that fundamental misunderstanding, the rest of the argumentation seems valid, and I agree: a code portfolio can be a good hiring tool. But GitHub isn't one.