Why did Chinese crypto exchanges shut down in 2017?

In 2017, the Chinese crypto exchanges experienced a seismic shift, with a wave of shutdowns that left the global crypto community in a state of confusion. One could speculate that the reasons for this were multifaceted. Was it due to the high volatility and risks associated with Bitcoin trading, which threatened consumer interests? Did the unregulated growth of crypto pose a risk to financial stability, prompting the government to intervene? Or was it the rampant use of Bitcoin in illicit activities, such as money laundering and financial fraud, that prompted the shutdowns? Furthermore, the lack of legal licenses for these exchanges and the unregulated nature of crypto transactions themselves, with their potential for market manipulation and security breaches, could have been factors. The anonymity of transactions on the dark web, coupled with the lack of strict anti-money laundering measures, could have further exacerbated the government's concerns. As a crypto enthusiast, I'm keen to understand the nuances behind this decision and how it has shaped the global crypto landscape.