Unfortunately, volatility is still a feature of these currencies, therefore it attracts speculators and those who believe in their long-term value more than ordinary traders.
Volatility is something that need to be addressed if we want to have a living on bitcoin. Within days bitcoin can have a jump of over 1000 USD. If we dont have stable BTC price we will continue to have BTC that will be only an asset of storage.
How do you control or address volatility? Kill all the whales and confiscate their hodlings? Of course, that isn't going to happen. Besides, volatility is what makes Bitcoin popular and what it is. Some of us need that volatility to excite trades. Without it the market seemingly stays down.