I do struggle with the "you coppers will never track me with my new cryptocoin!" mentality I see around (and on this thread). I do not subscribe that the view that "innocent have nothing to fear". If our transactions are visible for all to see then huge amounts of privacy issues become salient. It's just that I don't believe secrecy is the solution. Firstly, there is no digital secrecy. But mean maybe you have years…
I object to the whole notion of laundering. Prosecute the underlying crime. Obscuring the source/nature of money (aka privacy) should not be a crime.
I am reminded of a quote from Iain M Banks, where the hero was talking to a sentient nebula, and the background includes how the fleshy races would discuss if the nebula was "truly sentient", partly on philosophical grounds "but mostly because they could do immensely profitable things with a cloud of gas a million cubic parsecs in size"