Our co-op registers domain names for others. Like most registrars, we now cannot register Chinese (.cn) domains. There’s a bit of background discussion on WebmasterWorld.
While it’s always disappointing to offer fewer services, I don’t think we’ve ever registered a .cn domain and especially not for anyone in China. Most of the .cn domains we see are in spam. If this tighter control makes any dent in the amount of spam and scam sites, that’s probably a good thing.
I’ve not felt any significant reduction in spam since this change, though. I suspect the scammers have just moved to another top-level domain with a long-time idle government, while a few legitimate users of cn domains will also be punished along with the scammers. Will we ever shut out the spammers? Even if we kick them out of all domains, they’ll find some way of using IP addresses or something. The price of freedom is eternal vigilance.