> I expect that the ratio between prices in tainted / clean BTC will grow if the set of tainted coins increases compared to clean ones. I don't. I expect the a

> I expect that the ratio between prices in tainted / clean BTC will grow if the set of tainted coins increases compared to clean ones. I don't. I expect the absurdity will become more clear and make the whole attempt to flag them irrelevant. for example, after a national or municipal government seizes bitcoin under some semblance of due process or even an actual criminal charge and reauctions them, we are supposed to pretend those bitcoins are magically clean? do all the exchange softwares update to know that? they still have the transaction history from the event that flagged them to begin with. the answer is easier when it involves a government you respect like when the US Marshalls auction off a drug kingpin's seized bitcoin. but what about a government you don't respect? welp a sovereign nation seized it so they're clean now. If so, some random jurisdiction with some level of sovereignty can just become the bitcoin washer as a service, if not then exchanges are acting too arbitrarily and are going to lose business for no legal reason. Exchanges flag bitcoin to stay within an imagined impending compliance burden of being able to prove they don't accept dirty money. If they flag bitcoin with the clearest outcome of having been seized by the state and reintegrated into the economy, then they have made a hopeless error. People with ambiguously acquired bitcoin already have a dozen ways of getting it into bank accounts and cash, and will have even more in the future. So it's just the merchants and exchanges that have to make sure they are attracting business. For those reasons I don't see a separate exchange rate forming, its an average of fungibility that leads to the same result.