What's crypto been good for in its 10+ year span? Financing terrorism and ransomware, selling meaningless jpeg certificates of ownership, ICO scams, totally empty and greedy "number go up" speculation consuming the money and attention of potentially creative and productive fellow human beings, and Cryptokitties.
Meanwhile it's already irrevocably wasted, and continues wasting daily, tragic amounts of our world's resources and electricity.
Crypto is a cancer - it thrives because the earlier Ponzi participants are working overtime to hype it to the later ones, with mainly emotional and ideological appeals, plus plenty of technical handwaving. If you get deep enough down the rabbit hole technically and structurally, you discover basically what this article is saying.