I noticed some coins are removing from the coinmarketcap and some from specific exchange. I don't understand how the coin vanishing.Could anyone give me some reasons why coins are removing?
CMC has new criteria to list coins, these coins that you are talking about did not meet the criteria. They are almost dead with no trading volume because the traders who were trading or holding them left to new coins, a lot of coins will face this problem, because the new projects are stealing volume and attention of traders.