If everyone launders their money in a deliberate attempt to circumvent government regulation, they'll simply impose broader and harsher regulations. If crypto currencies are going to take over the future, then Bitcoin is a huge win for governments because of this. Your anonymity depends on your actions as in the real world, except the paper trail is significantly improved. Central banks may be perturbed by all this but the IRS certainly won't be. The only way to get past this in the long run is either to A) be on the other side of the law or B) use an implementation that forces anonymity, in which case there is still the threat of it becoming illegal once it's considered to be a large enough target.