For Facebook’s Mark Zuckerberg, these are tough times. With the IPO now in the distance, everyone wants to talk about the tanking stock, problems with mobile ads, or difficulty growing up. But could this be a blessing in disguise for the 28-year-old founder? “Personally I’d rather be underestimated, because it gives us good latitude to go out and take some big bets,” Zuckerberg said Tuesday at San Francisco’s TechCrunch Disrupt. “Because it allows us to do things that excite and amaze people.” Read the full story at Giga OM.