I agree. When I think of "Stealth Mode," I think of people who won't tell anyone what they are doing or what their startup is about, and you actively discourage people who know from talking about what you do.

I think that the Google behavior described doesn't fall under "stealth mode" for me. People knew what they were doing, they just didn't know how lucrative it was.

Might be a small distinction, but I think it's a meaningful one if you're trying to have a discourse about strategy.