And here's why: he broke the rules.
Kos has stated in no uncertain terms that he will not tolerate conspiracy theories or the discussion of conspiracy theories. And on the pragmatic side of things, Kos has to look out for his bottom line. Less traffic to the site because moderately liberal readers are scared away by conspiracy theorists opining on the Rec List is bad for business. Yes, that's right; I'm making a fiscal argument against freedom of speech. Give me the Alan Shore award and move on. The truth is that Kos has to look out for the people who view this site. He's the owner and proprietor. Everyone here is his guest and we agreed to play by his rules. Now, you can start your insurrection and complain about how conspiracy theories and other non-reality-based things should be an integral part of the site, but that doesn't mean it will happen any time soon.
Moreover, it shouldn't.
DailyKos prides itself on being a reality-based community, and conspiracies are not based in reality: they are based in paranoia, especially when posters see them everywhere. I - as I believe Kos might have been when he banned Tocquedeville - am fed up with conspiracy theorists posting on this site, as it demeans the stature of this site and what we believe. We believe in reality, not fiction or paranoid ravings. There will be those in the comments who might argue Watergate as a valid excuse for this behavior. Last I recall, that was based in reality and had reams of evidence to back it up and before Woodward and Bernstein ran their article, they ensured that they had facts that could present a narrative which could not be denied. Accusing someone in high political office of criminal negligence is a weighty thing to do and should not be done lightly, as capricious use cheapens the power behind those words. To cheapen the very language we use to describe the most reprehensible and evil of acts is at its very core a crime.
We are a body who prides ourselves on our rationality. To lose that to paranoia...I cannot think of a worse fate. Tocquedeville libeled this site, its users and the very concept of morality that governs it. For that, he should not be allowed to post here.