I enjoy listening to Michael Moore's opinions. He reminds me that there are other voices in America then the ones that typically make their way over the Atlantic. I am encoraged to hear that he is a bestselling author in America, I only hope that he makes people stop and think by his criticisms.
If American conservatives think he is a danger to America by presenting a distorted lens on the country, they are quite mistaken, I think he instead increases people's opinion of America by showing it is capable of self criticism
He often is too loud, too eager, much of what he does is showbiz.. but what do you expect he is American after all