There is no question that contributing on the web in China is fraught with a level of personal risk not seen in the West. Here, no one really cares what you write, provided it is not racist and does not defame anyone.
___In China, blogs and blog service providers get shut down on a regular basis. No explanations or warnings are given. This is what happened with a large Chinese blog provider Bulldog.cn last month. A blog that has run for one year is considered to be long lived. Search for the most popular blogs in China and you’ll find many that are posted on local blogrolls no longer exist. Here today, gone tomorrow. You’ll find previously vibrant URLS shuttered, all content gone, no comments allowed, no explanation given. It’s all very subtle.