I kinda like the distributed ledger aspect, but there are lots of ways to do that. The thing that annoys me about crypto is all the wasted compute; it's not like when we succeed in factoring a large number, that creates sufficient downstream utility to be a positive externality. A lot of the alleged advantages over other kinds of currency only make sense if you're a) paranoid enough to think governments are out to get you on general principle but b) optimistic enough to believe in society where property rights are taken seriously and digital abstractions will continue to be convertible.