This is exactly the problem with hiring. No one can take their ego out of the equation. Every single one of these 'hiring hacks' stems from our deep-seated desire to see ourselves as one of the "10x programmers". So we look for the same thing on other people to validate ourselves. When we're in a position to hire, we hire people who match our own particular quirks, re-enforcing the idea that we're one of the best. All of these subjective hiring hacks mean absolutely bullocks.