Ask HN: How many Googlers left the company due to SPYW?

http://pandodaily.com/2012/01/24/larry-page-to-googlers-if-you-dont-get-spyw-work-somewhere-else/

I'm curious how many (if any) Google employees took SPYW or Page's position on it as a sign to get out. I'm not asking this as a way of taking a position on SPYW specifically, but I am very interested to know if that sort of unenforced charge by a top exec actually has any real effect.