This is a downside to using a code hosting site. Joel Spolsky once said that "politics are orthogonal to software". I might not care if Chinese censors block my blog, but I want my code to be available to as many as possible. The smaller the site that holds the code, the easier it is for them to selectively allow it.
I don't want to go out of my way to make it so they can allow access to it despite a horrible censorship system, but I'd prefer not to put all my eggs into one giant basket either.