O Brother, Where art Thou??

Recently, I was referred to a site that asks the popular question: What really happened to Dave Chappelle? Was it stress, spiritual retreat, Warcraft? Turns out, it was none of those things.

Essentially, it states that Dave Chappelle cancelled his show because of pressure from an influential African-American coalition, comprised of luminaries such as Bill Cosby, Al Sharpton, and Oprah Winfrey. Their position was that his show was damaging the image of African-Americans by his continued use of negative stereotypes. It's controversial, inflammatory, probably libellous, and therefore an interesting piece that I enjoyed reading.
The problem with this sort of conspiracy theory is that there is absolutely no way to prove it. There are no quotes, no facts cited, no sources, nothing concrete in the least. Academically, this material is useless. It might be true, but how can we know? The first page, where the author describes who he is and how he knows what he does, sounds the same as those emails you get saying that Bill Gates and AOL want to give away all kinds of money if you foreward this message. "My brother, who's a lawyer, says this is true!" Come on. If you're going to spread conspiracy theories, at least give us some facts, something we can check up on.
I'm not saying this didn't happen to Chappelle and the site is wrong, I'm saying that there is nothing there to differentiate it from a story. No police statements, no provable quotes, no pictures. Of course, it can't be proven false either, but that's the problem. It's just a story. If you're a JFK conspiracy theorist, you point to statements made in the Warren Commission that were proven impossible to argue a coverup took place. If you think the U.S. government shot missles at the Pentagon, you point to irregularities in the damage and FBI seizure of nearby video surveillence tapes. The argument that Chappelle was pressured into quitting his show isn't isolated to this site, but if one wants to mount a true argument that this was the reason for his cancellation, they'd better have some evidence to support it instead of mere storytelling.