Hey, I'm not asking you to like or agree with what I'm saying. I'm just pointing out that, if I were a Bitcoin guy, something like this would make me
super nervous.
That's because something like this makes it super easy for any government that wants to to say something like "Look. We've already seen that Bitcoin is heavily used in criminal activity, everything from drug deals to contract murder to traffic in child pornography. Now we have people building technology around Bitcoin to make it impossible for law enforcement to tell when it's used in those crimes and others, and also impossible to use Bitcoin transfer records as evidence in prosecuting the people who commit them. It's time to acknowledge the truth about Bitcoin. It's not a currency. It's not a new form of money. It has no legitimate purpose. It's just a tool for criminals to get away with their crimes."
Please don't waste your time and mine by arguing with me that this is deeply tendentious, inaccurate, unfair, unjust, against privacy, immoral, and fattening. For the sake of us all getting on with our lives, I freely concede that it is all those things. Does it matter? As I've already pointed out, what we're talking about here is something that will get right up the nose of pretty much any government in the world. Few governments are notably sympathetic to the rhetoric of privacy absolutism. I think it would behoove those with an interest in Bitcoin to consider how they might respond, more persuasively and usefully than such rhetoric can manage, in the event the US government (for example) proves not yet too spavined to muster some backbone in reacting to the idea of untraceable Bitcoin transfers.
(As an aside, it's things like this that are a big part of why I keep my money safely away from Bitcoin. It's technologically impressive, to be sure, and someone is going to do something amazing with a blockchain someday. But Bitcoin also shows a very strong tendency to attract people who are comfortable addressing a wide range of subjects, from the way governments work to the way money works to the way information security works, purely on the basis of wishful thinking. This makes things exciting! SpaceX's static test yesterday got exciting, too. Such events often strongly reward observation - ideally from a long way upwind.)