Cryptocurrencies were meant to be anonymous & decentralized currencies, but they aren't. Over the last couple of years, it has become obvious to anyone without an entirely blind vision that the value of cryptos currently only consists out of speculation.
I hate to say it (or do I?), but the majority of the cryptocurrencies is in a bubble... And it's simply a matter of time till it bursts. No one knows when, where or how, but people with a brain know it's gonna happen.
A more positive side to this, though, is that this will leave the useful Cryptocurrencies that weren't so insanely overvalued due to pure speculation to rise up & shine in the spotlight. It's these Cryptocurrencies that will gain more attention, show the use of Blockchain technology further & regain the trust of the masses.
Only when the bubble bursts, can Blockchain technology be widely adopted. Sometimes, sacrifices must be made for the greater good.