Let me try to clarify mine.
The famous "Dean scream" was not something that I personally felt was an issue for embarrassment. Rather, I found it to be evidence of a man who cared, who was truly passionate about the issues he spoke of, not simply a cold plutocrat as are many of our political favorites.
The media played this many, many times and played a great part in tainting his image. A lot of people, myself included, mocked the media and many others for suggesting that, because of a mere passionate scream, he was somehow not presidential material. Hell, I remember a long time conservative telling me he admired Dean because Dean had the courage to scream on public television. I concur.
My point is that it is entirely ridiculous, when someone screaming on National television somehow makes him un-electable. Dean always seemed to me to be more of a real human being than most of his fellow candidates. I admired him greatly. I realize I wasn't terribly clear about that in my post. Dean, I fear, was much too HUMAN for our media's talking heads and our political dittoheads to get excited about. He was too real. That is in large part the point of the OP. It's one of those things that just makes me throw up my hands and sigh.
We'll vote for sneering plutocrats, for drunken idiots from Texas, for billionaire authoritarians, all without batting an eye. Yet when someone who is rather more of a regular person runs for office... he is endlessly mocked and rejected for the very thing that SHOULD make him MORE electable.