Coin Security removed 30 trading pairs such as ONE/TUSD today. Zhao Changpeng commented on this: “In a pairing transaction, if the trading volume is too low, people may have to trade twice to get the token they want. There are too many trading pairs. Many trading pairs have poor liquidity and spreads. Users have to look at many trading pairs to find the best price. Just like many things in life, this is a balance."