Is zerocoin a launder system but not an anonymous transfer system ?
Some anonymizing systems are designed to obfuscate links. For more obfuscation, you need more non-colluding participants for 'cover traffic'. These participants are known as the 'anonymity set'.From Wikipedia: "Money laundering is the process of concealing illicit sources of money to make it appear like legitimately earned money."
I imagine if zerocoin were cheaply available, it would be used to ensure legitimate expectations of privacy vastly more often than it would be used for concealing the proceeds of crime (most people are not criminals, and almost everybody would choose to have the extra privacy if it was essentially free).
For this reason I prefer to call them 'mixes' rather than 'laundries', but that's just me...
