i dint thinks its probably true,because in this data it means,mostly Korean trading always pump up in the block chain market.in a last few months i heard a news ,blogs that Korea will prohibited bitcoin to use in there country for trading,so how did to explain this kind of news, if we can heard that always pump up Korean altcoins.mostly Korean exchange is in need of your personal preference like ID,cell no etc.to verify that the exchange trading is legit and no bogus.