* Sending funds internationally is much much easier, an order of magnitude less expensive, and several orders of magnitude faster than going through the traditional banking system. It's entirely next level and there are plenty of legitimate reasons why people need to send international wires.
* Transacting in legal, but morally divisive areas, where traditional banking/finance might shut down your business just because it doesn't like what you're doing or is scared of the risk. E.g. selling cannabis products, sex industry stuff (porn, sex work), gambling, etc. people may not like some of these businesses and want to impose their own morals to get rid of them, but crypto makes this impossible in ways the traditional banking system can't.
Point is: there is absolutely a toooon of BS scammery in crypto. And many naughty things it can enable. It's the financial Wild West. But to call all crypto a "BS scam" is simply untrue. It would be like calling the entire Internet a BS scam just because of what it enables (plenty of scams, online gambling, porn sites, darknet markets) and the immense energy it consumes. But like the Internet, the technology is fundamentally useful. You've got your blinders on a bit too strongly if you believe otherwise.
Just as an illustration of a use which - for good or bad - reached the goals of the person.
TOR appears to have enough nodes operated by the authorities, with enough notable de-anonymizing exploits that anybody running a market or selling enough gets got
And the ledger isn’t anonymous, and never was. Even using a mixer isn’t really good enough anymore to keep the authorities from tracking bitcoin flows to the point of cash out.
One of the largest and most popular markets (Archetype) has been running smoothly for almost 4 years at this point. Which operates exclusively on Monero due to its far superior anonymity over Bitcoin.
Most markets have either required Monero or heavily discouraged Bitcoin for quite a while now.
Monero's fungibility is excellent, but the transactions-per-second ain't that great right? Also Proof of stake is inherently more sustainable in a resource-constrained world: you don't want to replace banks by something more wasteful thank banks...
For my money's worth, and clearly talking my own book here, the decidedly zero-hype Algorand is the useful crypto at 20k TPS, this is the Visa/Mastercard territory where things get interesting. As for fungibility, it will have to be some democratically controlled thing I think...
You're also right that PoS is more sustainable than PoW, but I think this will change your mind: https://old.reddit.com/r/Monero/comments/lv5285/alt_take_on_... It did for me. Thankfully since the energy consumption does not scale with the transaction rate, it's not a long term problem I think. Currently, the high energy per transaction stats are only because the adoption is low.
But hey at least we proved that we won the race to find said hash before someone else!
it can be wagered that all the social media airtime spent on them would probably waste more electricity in the process.