I love that Michael Moore did what he did, and I damn sure don't think it was "bad taste" or "not the proper forum" or anything like that. But I think he could have gotten the message across much more effectively.
By throwing in all the stuff about the "fictitious election" and what not, his message came across more "I hate Bush" than "I am against this war". And his combative, smirkingly self-righteous tone just seemed out of place, and surely alienated anyone not firmly in his camp already.
I love Michael Moore but I've always thought he is clumsy at times, and too often revels in the easy joke or the cheap shot that doesn't really advance his argument. I think this is a case where he should have put more thought into exactly what message he wanted to send, and who he wanted to reach with it.