Does anybody know why the volume on btcchina is so low the last days?
DDoS
It seems that a somewhat more accurate headline would have been: "BTCChina and Huobi agree that the current 1 MB block size limit is too small, but think that 20 MB would be too big"
you know there are only 91 nodes in the whole of China, if anyone over there wants to use Bitcoin they would need depend on one of the other 5000 nodes over here, i don't think they have much bargaining power.
You really believe there are only 91 nodes over here? It must be those data collection services have bad connectivity to China so they cannot find and connect to most nodes in China reliably. I am personally running 7 nodes in China. None of them can be found on bitnodes.io. What the hell, they cannot even afford a cloud server in China running a Chinese node.