> no reasonable engineer that is asked to interview you will look at your github, or care if you have one.

yeah gonna have to disagree on this. I'm an engineer and work for a BigCo Enterprisey company and while it's not necessary, if you have a GH account, it makes my job easier when I interview you. Of course if you write terrible code, then the GH account probably is not the best thing to have. But other than that, I can't see a reason why not to have one. If you have one, I definitely look at it and I consider engineers who have one higher than those that don't. Doesn't mean that I won't rate you favorably if you really know what you're talking about, but it doesn't hurt.