No, I don't think it's an error. Coinmarketcap often excludes outliers because they assume that exchanges are reporting something incorrect. But in this case, I think the South Korean exchange probably is reporting actual volume.
It's probably a good arbitrage opportunity, but I'm sure it's easier said than done.
I just realized a detail, the arbitration with steem is the easiest of all there is for not having transaction commissions and for being instantaneous, I did not think about it until reading this message, I'm not sure but steem is the only cryptocurrency without transaction fees?
really this news with these large volumes has me totally excited.
I believe that right now we are in the best business.