Via Terra Sigillata I just learned that Isaac Hayes has quit South Park, due to:
the show's "inappropriate ridicule" of religion
One of the show’s creators, Matt Stone, nailed Hayes real reason for leaving:
In ten years and over 150 episodes of 'South Park,' Isaac never had a problem with the show making fun of Christians, Muslim, Mormons or Jews… He got a sudden case of religious sensitivity when it was his religion featured on the show
As I wrote here, the November 16th episode made fun of Scientology, and Hayes is a Scientologist. And a hypocrite, apparently.
And as I wrote here, religious beliefs are the ones not backed by any reliable evidence, and so should be first in line for ridicule. Scientology is based on the musings of just one person: L. Ron Hubbard. Hubbard’s claims have not been independently verified, and in some cases there is evidence they are wrong. No one in Scientology is allowed to challenge the teachings of Hubbard, and since Hubbard is now dead no progress can be made, no errors can be corrected. Ridicule is the appropriate response.