I don't think I said it was the main issue. I agree that it had other problems too, including the ones you name. But I think you're missing my point. The anony

I don't think I said it was the main issue. I agree that it had other problems too, including the ones you name. But I think you're missing my point. The anonymous, one-shot nature of things made it most appealing to only one set of merchants and one set of customers: people doing crime, and who were therefore most tolerant of the risks. The onboarding problem is also partly a consequence of this. Because a bitcoin transaction is irreversible, and exchange can't just take a credit card payment and give you bitcoin.