I agree with the article and I hold 0 crypto right now. But I still think it's amazing that I can hold something limited, something I can exchange for real money, in my head, just based on math. Sure it is extremely inefficient database, and pretty much all the real value needs to be linked with real world banking, but it does have some really unique features that makes me sad that it (predictably) turned to just scams and speculation.
Edit: and the other feature I like is that I could just attach my code to the raw banking backend. People say that anyways everybody just uses exchanges, and that's true, but if you'd ever want to connect to banking backend, you'd get buried in paperwork. With crypto, you'd just run or connect to a node.
> just scams and speculation
The "currency" part is actually the only one that is not a scam, as long as you understand what it is and the trade-offs it makes.
If you do actually have a legitimate reason to use it (because conventional payment rails are not available, or you're doing crime, or need pseudonymity), it is a perfectly fine tool.