"To be clear, a thank-you note does not ensure someone will be a successful hire. But using the thank-you email as a barrier to entry has proved beneficial, at least at my company." the author says. Blatantly ignorant towards all the genius they've lost in their broken process. "The handful of times we've moved forward with a candidate despite not receiving a thank you, we've been ghosted, or the offer we make is ultimately rejected." The author says, because changing the strategy for a handful of cases out of thousands is definitely really scientific and stuff. "As a hiring manager, you should always expect a thank-you email, and you should never make an offer to someone who neglected to send one." as the last quote just showing the pure entitlement the author suffers...
That's exactly the kind of thing that makes me happy to be in Software, people who bring trouble usually don't get promoted into responsibility...