Agree perhaps, from a psychological standpoint I say stealth all the time because I am plain sick and tired of telling every person whom inevitably asks the question, "so whats your startup working on". I'd rather think of the code I need to write the next day or just talk about macro economy and other things. My life is 24/7 startup already. And may I add: seasoned entrepreneurs don't ask THAT question they either wait for you do talk about it yourself or don't pester you with it because they have all been there too.