but the exchanger definitely loose a lot of profit by closing it doors to users from other countries.
I don't think so. It's very difficult for foreigners to sign up there, set up a KRW bank account, have everything converted, and then have that KRW converted back to USD or EUR at a later point, etc. If we look at what South Korean markets have to offer over the other markets making it interesting for foreigners to sign up there, then it's just one thing, and that's the huge price gap of thousands of dollars. I am pretty sure that the number of people successfully looking to bank on that price gap are an extreme minority, and for that reason Korbit didn't had anything to protest for. The only thing these foreign traders are doing is milking that market dry, so what exactly will Korbit lose? I even think that Korbit is pretty content with this move.
