The link between the content of your GitHub and your ability to ship code is unclear at best. I knew a guy who had a really awesome GitHub profile but turned out to be a mediocre contributor to the codebase. He claimed that coding style guides we used were hurting his creativity to the point that he did not enjoy coding and would avoid it if possible. He'd fix bugs and make small-ish contributions but would never ship major features or libraries "because of the style guide". While I understand the sentiment I always found his attitude juvenile.