Initially, the ban on use of virtual currency was considered by the authorities as a deterrent to using technology to launder money.
At this time, all ICO-funded projects in China are required to repay to investors, but details of how the repayments will be made are yet to be announced.
Because they rate bitcoin too fast. but once understood and learned I'm sure bitcoin has a lot of positive value. Especially economic progress for the community. Because bitcoin does not provide distance, bitcoin can unite all circles.