I think poker or another form of gambling is a good analogy. In my opinion, the article tries to construct a pretty strained analogy by listing all the myriad ways Bitcoin isn't like a Ponzi scheme or a pyramid scheme - which is what makes it so ingenious as a Ponzi-pyramid-scheme!, apparently.
It clearly does share aspects of Ponzis and pyramids, but, unfortunately, so do plenty of other things, like many companies' stocks. That doesn't necessarily make those companies fraud-schemers, though. That's just what speculation is. You can try to frame all speculation as a pyramid scheme, but I think it's a stretch. I personally dislike gambling and speculation (and finance in general), but there's still a distinction between speculation and scamming.
That said, of course in addition to this, lots of other cryptocurrencies/tokens are full-on fraud schemes. If you count all tokens (which anyone can make and sell in like an hour - many are being created daily), then > 99% of it probably is. In my opinion, all these scam tokens are very similar to malware. (And often are also literal malware, because many scam tokens are implemented as malicious/backdoored smart contracts.)
There are absurd amounts of malware variants created daily. It's easy for a single person to create dozens of malware variants or dozens of scam tokens in a day. If you're going by number of distinct software hashes, it could very well be that > 99% of all software is malware.
I certainly get why people are a tiny bit wary of an ecosystem that's > 99% fraudulent in terms of percentage of distinct assets. > 99% of activity on Tor is also likely illegal or malicious in some way. (There are some studies indicating this.) That doesn't mean I want a government to ban cryptocurrencies or ban Tor, and have police "raid Bitcoin meetups", as this author suggests in the article. Tor, Bitcoin, and especially some other cryptocurrencies have interesting technology to offer. I'd rather there be an attempt to address the externalities in a less crude way than just a blanket ban that makes the technology illegal.