Although I refuted some of your arguments above (https://news.ycombinator.com/item?id=24033759), I agree that cryptocurrency has fairly limited utility, especially given the costs.

The biggest issue I have with cryptocurrency is that it’s an utter waste of resources. It incentivizes the consumption of electricity (and talent) purely to print money, rather than to produce value. Yes, currencies provide some value to society, but we already have more sustainable options.

I see the appeal if you hate taxes and regulations or live under a particularly oppressive regime. However, given that it relies, to some extent, on public infrastructure like internet and electricity that governments can outright shut off if they so desire, there are better options. Raw materials and bartering work pretty well. Just don’t invest in tulips.