The crypto world has seen a mix of both alarming and encouraging news in recent weeks. The quick exit of Binance CEO Changpeng Zhao, after he pleaded guilty to US money laundering charges, and a fine of $4.3 billion on the crypto exchange in November, has overshadowed a bit of positive news: The possibility of the US Securities and Exchange Commission (SEC) approving the listing of the first spot Bitcoin exchange-traded fund (ETF).