I used to think exactly like you but I've changed my mind now. I think there's a world of difference between being a jerk and being rude and telling people the

I used to think exactly like you but I've changed my mind now. I think there's a world of difference between being a jerk and being rude and telling people the truth. Or rather, one doesn't have to be a jerk to call people out on their BS. For example, Don Box (of SOAP, XML, etc fame) is the nicest guy you can meet. And he is super nice even when he is shredding people's arguments and seeing through their BS. I have no idea how Zuckerberg is in person though and wouldn't judge him from articles. But in general, there is no reason to be unpleasant just to be brutally honest.