Michael Moore - darling of the left, populist hero, fat-man muckraker in a trucker hat. But he's been getting a lot of backlash lately, and a lot of the criticism against him seems to have some weight. This article runs down a lot of the cirticism against him, explaining why he sometimes he seems to be moving towards becoming the Ann Coulter of the left. The article reveals a lot about Moore the person, but for someone whose work so consistently trades off his identity, some investigation seems valid.
Personally, I have liked some of his work, though watching his second movie The Big One, the title being his nickname for the USA, it seemed really to be all about him. And no, that is not a fat joke.