Lots of people on social media sites like Facebook are raging against Vitalik due to what he said. But he's actually right. The cryptocurrency could take a nosedive anytime and could take years and years on end to rebound in price. In my opinion what Vitalik said is better than shilling Ethereum for price rises. People on Facebook are saying that Vitalik is spreading FUD; but Vitalik is a very smart guy, and he's just being very realistic.
I 100% concur.
Personally, I still strongly believe that technologically sound cryptos have a higher chance of increasing in value and utility rather than dropping to near zero and vanishing completely. But nonetheless there still is a chance that cryptos become utterly worthless in the future. And definitely no one should invest more than they can afford to lose (technically true for pretty much every riskier investment, to be honest). Claiming otherwise would be irresponsible, so hats off to Vitalik for speaking the truth.
Old time buyers/investors have earned 10,000 times profit by all those talks and now they fear "total loss"
I don't think anyone is worried about the early adopters. It's mostly the new money that needs to be made aware of the risk, as they lack the experience and stand to lose the most.
