I went treking thru china two years ago and had no trouble getting onto this site. in fact i noticed no censorship at all. I have however noticed censorship in south america.fwiw
I was in China a few years ago, and I did notice censorship.  However, it was only of large sites.  For example, CNN.com was blocked.  But many other smaller sites, with content that would likely be blocked in a U.S. library, were not blocked in China.  
I think a distinction needs to be made between blocking a site, and monitoring who uses unblocked sites, then paying them a visit.  Sometimes it is more useful to keep the population afraid of looking for knowledge than actually blocking the knowledge.

As a western visitors you can access anything you want, but the Chinese government probably was monitoring your activity.  If you were a Chinese citizen, your activity might win you a knock on the door.

we do live in interesting times
I suspect it's not as easy to monitor people as to block sites.  Many Chinese access the net through public computers (which is what I did).  You pay per hour.  Cash.  

Would it be possible to track down who was using which computer when?  Possibly, but it wouldn't be easy.  At least when I was there, they didn't really take note of which computer you used.  It would be like trying to keep track of which kid used which video game at an arcade here.

You've peaked my curiosity about the process you went through to get access to the machine.

Did you pay with cash or credit card?
Did they scan your card and assign you a machine or password?
Also was this an establishment that catered to tourists or locals?
What year were you there?

Evidently they did a crackdown in 2002.
http://news.bbc.co.uk/2/hi/asia-pacific/2608305.stm

Oops! You said cash already. My mistake.
I went treking thru china two years ago and had no trouble getting onto this site.

When do you think this site started? TOD began in March, 2005, right? And not many people were reading it for the first few months.