Just did a spot check of the IP addresses of some "guests" and nearly all of them are originating out of China.
Nice that the folks in China have taken such an interest in the membership here.
Several loading stats are rather modest, so this doesn't seem to be having any notable effect on the server's functioning. But if it does get to that, I found a site a while back (hopefully I can find it again if need be) that gave a list of ALL IP addresses in China in a format to plug into the server's WHM panel to ban them all at the door.