POW is outdated technology and it should only exist on top of Bitcoin. Most POW-mined cryptocurrencies are at high risk of being hacked. History has shown that ETC has been hacked regularly.
I support the government mechanism to regulate these cryptocurrencies. The balance between mining pools to avoid 51% attacks on cryptos mined with POW. That avoids financial risks for investors when trading. It is necessary to remove them from derivatives such as margin, future.