Employee #2 at amzn.
But sure, that doesn't count because I got out before the company hit 20 employees.
I don't doubt that large corporations with heavy technology dependence engage in what you're describing to cover some aspects of their operations. I do doubt that is covers all aspects, and in particular, I very much doubt if amzn A/B tested the language described in the GP for the purposes claimed by the parent of my comment.
EDIT: Given the comment @ https://news.ycombinator.com/item?id=29374358 I should probably just accept that for amzn at least, I'm just wrong.