The opinion is on crypto trading. And I agree with a lot of what he is saying.
But that does not make crypto money without a purpose.
Look no further than to what “Satoshi Nakamoto” wrote in the the first sentence of the abstract of the original white paper [1] about Bitcoin:
> A purely peer-to-peer version of electronic cash would allow online payments to be sent directly from one party to another without going through a financial institution.
That is the purpose for which Bitcoin was made.
Then a whole bunch of people started looking at what else we could use blockchain technology for.
Some came up with things like platforms for smart contracts. [2]
Others realised that they could just ride the hype waves to scam people. [3, 4, and many many more]
Some found that it greatly enhanced the ability to perform wide-scale cyber attacks for financial gains.
And some, like the author of the opinion rightly points out, like to use these technologies as a glorified gambling system.
But to state that crypto is money without a purpose like the title says, is nothing short of wrong, imo.
[1]: https://bitcoin.org/bitcoin.pdf
[2]: https://ethereum.org/en/whitepaper/