Number 2: No One Believes Anyone Can Actually Code It's surprising to see the number of people who interview for lead technical roles that cannot code, or whose work is exceptionally sloppy. Incompetence is more commonplace than the author believes, even at the highest level.
I understand that's a problem, but if I have an entire github of highly starred and heavily developed projects with reasonable commit histories... don't make me do your do damned homework or implement a toy BST. I have better things to do with my personal time than toy problems because you can't be bothered to open my github. The worst part is that usually these toy problems are justified with "but you can post this…
Unfortunately, the current common argument from the hiring side is that GitHub profiles are not sufficient proof of skill since code can be copied (not fair) and GitHub projects bias toward people with extra free time (reasonable, but not enough to discount GitHubs completely IMO)