Really good news indeed. South koreans have a passion for new technologies. If they start using BTC more often - it will be the first step to worldwide adoption. And I mean real adoption, not just couple of stores for cryptonerds.
Indeed, if it's legit it is a good news for the market, and I agree that South Koreans have passion when it comes to technologies. And also they are well-known, if they'll use Bitcoin and prove that it's safe than any other investment, other countries will adopt it too, which will lead to mass adoption of Bitcoin.