rscott13 - 5:11 pm on Sep 15, 2011 (gmt 0)
It appears that GoDaddy did this with Chinese DNS servers as well [http://techpus.com/2011/china-blocks-godaddy/].
The blogger thought that it was China blocking GoDaddy websites, but given that it occurred weeks after GoDaddy implemented their policy, it seems much more likely that GoDaddy blocked the Chinese DNS servers (I would guess that China has most of its DNS queries go through a handful of DNS servers, therefore generating a high volume).
So, if that blog is true, any website with DNS hosted at GoDaddy cannot be reached by Chinese visitors. My guess is it may have only been temporary, as I would expect more people would be complaining.