China has more Internet monitors than soldiers.
mashable.com
mashable.com
1. China keeps a tight reign on its populace, or at least on popular opinion.
2. China needs to employ a whole lot middle-management types.
3. It's cheaper to censor debate that it is to have debate.
4. Censorable debate isn't necessarily or even very often criminal in China - if the USA censored something, the author(s) would likely end up in jail.
5. This is the future of The Rest of The Internet.