I just got hit with the same comment spam at both macmegasite and worldbeatplanet. Two spams were posted at each site, with a subject something like ‘sdsf’ and the content consisting entirely of Chinese characters. All of the ones I saw today came from the IP address 220.127.116.11. Last week I saw exactly the same spam, which came from IP address 18.104.22.168.
Both of those belong to China Telecom. To avoid any future spam, I’ve blocked their entire IP address range from 22.214.171.124.0 through 126.96.36.199. I’ve never seen a legitimate user at either site from there, only spammers.