self fulfilling prophecy though, because the people who worked at Google but don't tell you about it, won't tell you about it, so you don't know they did so you're only going to hear about it from the ones you hear about it from
To pick a different topic, I know a couple of vegans. Some of them are militant about it, others simply are not. You'd never know that about them unless it really came up.
"You don't need to ask, they'll tell you" - a claim that the people who work there will brag about it.
And while there may be some truth to it, keep in mind that you hear about the ones that will tell you, you don't hear about most of the ones that don't.