Has anyone actually hired a real hitman with Bitcoin? In pretty much all cases that I've heard of, the hitman turned out to be either a cop or a scammer.
You make a good point that, blockchain or not, ultimately the problem is not technological in nature. Bitcoin facilitates drugs and hitmen as much as ability to mail someone a letter with bank account details attached (account with money). As usual, the solution is to make the activity not worth the risk by posing as either party.
buying stadiums in Florida, gambling imaginary money, moving money to your dad to pay for your inevitable legal bills, buying league skins, the list is endless.
The only thing that really worried me was effective altruism. There is nothing in the world more helpless and irresponsible and depraved than a man in the depths of a changing world for the better binge
I think anyone familiar with effective altruism's roots in utilitarianism was rightly immediately concerned about it, especially how it currently seems to be manifested.
Never forget Jeremy Bentham proposed the Panopticon.