Binance took the huge risk of changing prices for a very simple reason: CZ and He Yi got scared. The long wick is evidence of price manipulation and had to be erased. Binance went overseas in 2017, first to Japan, then Malta, but left both due to regulatory issues. To avoid risks, CZ came up with a clever idea: not setting up a headquarters and operating globally in a decentralized manner. It's also the only exchange in the world without a headquarters.