Coinmarketcap and Korean Exchanges

Open https://coinmarketcap.com and you'll notice a solid dip in prices overall (Change 24hrs column). Apparently Coinmarketcap has excluded Korean exchanges from their pricing average for all their listed digital assets. This has led to a sudden decrease in price overall given the high price of the respective asset/token/coin in Korean exchanges.

Overall CoinMarketcap stats:

Bithumb Exchange stats listed on CoinMarketcap currently:

There's a really good reason why investors/traders should always note down their entry point (in USD and BTC) in the exchange they purchased and do the same (in USD and BTC) during their exit point. Coinmarketcap provides an average price of all exchanges put together. While its always useful for a good reference, one must always exercise caution during their buy/sell orders and ensure that they do not panic sell.