I work on a team of about 25 people, all quite top notch. I think there are two github profiles of any substance out of the bunch. My own profile, for example

I work on a team of about 25 people, all quite top notch. I think there are two github profiles of any substance out of the bunch. My own profile, for example, is basically a scratch pad where I toss random half-baked experiments that I want to show to a specific person, and the occasional fork/bugfix on someone else's project. A well-stocked github profile can be a bonus for a candidate, but it's just asinine to reject someone for lacking one. Heck, my biggest personal project has been underway for several years and will be for several more, but I'm keeping it under wraps and very few people even know it exists. Some very good developers spend all their free time with their kids, or training for IronMan races, or doing community theater. And some people work for companies that would try to lay claim to code the person wrote on their own time, so they just don't bother.