Their people had no choice than to move out of their home country. Hong Kong is a very friendly place for investors where you can register your own business for as low as 1000$. Given the immense wealth of Chinese investors, moving to Hong Kong was a sweet deal. The price of Bitcoin was lower in Hong Kong and higher worldwide, so they made even more money through arbitrage. If in future my country bans bitcoin, I will consider relocating to one of the aforesaid nations.
Yups,hongkong is a mature part of china in which they are more open for every people and every changes
And they see how singapore progresses upon accepting the presence of cryptocurrency.
China wanted all their people to be just nothing but a laborer till they die while hongkong and singapore wanted precious time for theirs