In my defense, it was a pun too obvious to resist.
And honestly, I think of a hack as a quick and/or dirty technique to get the job done (even if its ugly or imperfect, or falls apart under scrutiny). A hack is a shortcut of some sort.
Hiring seems like a situation where cutting corners is a bad idea with little to no payoff.
While the article was good, I don't see how these observations are hacks. Unless taking your time and being thorough is the hack. (By my definition, it is an anti-hack.)