I can understand people not liking Mr. Moore, that's your perogative. A lot of times I think he's a jerk, and that messes up his message. But there always is a message there, and it's usally pretty good. People argue that he's too one sided, or that he has some hidden agenda. GREAT! Maybe he does, maybe he doesn't. I don't believe every word he says, just like I don't believe every word anyone says.
I don't trust Michael Moore and more than I would the local news, the President of the country, or my own grandmother for that matter. Well maybe my grandmother. The way I see it he's got a message, I think it's an interesting message, and even if you don't agree with his message it's an interesting view point. You owe it yourself to hear as many view points as you can find, do some research, and make up your own mind.
Needless to say, of all the negative feedback I've received about Fahrenheit 9/11, zero people have actually seen the movie. That seems awfully close-minded to me. Besides it's really easy to dislike a movie you've never seen.