Programming in your free time and having code on github are orthogonal. Plenty of the best programmers I know don't use github and have all kinds of personal p

Programming in your free time and having code on github are orthogonal. Plenty of the best programmers I know don't use github and have all kinds of personal projects. Where's John Carmack's github? Where's Michael Abrash's? Where's Jonathan Blow's? I'd be willing to be most of the most famous game programmers don't have github accounts.