[renholder]

>Perhaps this is selecting for desperate job hunters who send thank you notes.

That's entirely plausible. I mean, you're probably <insert arbitrary percentage here> more likely to not turn an offer down, even if it's below the cost-of-living for the area in question, if you're willing to go to those lengths, yeah?

Their solution to the problem of having offers turned down seems to be not to investigate why but to just hire the people most willing to take them... I mean, they found a loop-hole but to quote the Big Lebowski: "You're not wrong, Walter, you're just an asshole."

[Cactus2018]

New theory... the original twitter's annual performance metric is based on number of successful new hires (turned down offers and candidate who realize they are a bad fit are negatives)