China will have separate servers because it's required by law so the government has access to them. Also the cooperation between square and the Chinese company is required by law. Has nothing to do with RMT and despite the almost racist attitude some western gamers have towards Chinese not all Chinese are RMT in fact Chinese players hate RMT as much as western players. the light regulation in china coupled with 1.4 billion people who need jobs are the reason why RMT trade is there in the first place.