Parent was probably implying that the Secret Service would sieze the tainted assets and the auction them off to new bidders, thus removing the taint for the new owner. the reason for the auction instead of just funding the treasury is that the USG deals in dollars, not in securities or other obligations or paper instrumnets. Compare the actions of the US Marshalls after siezing the Silk Road Bitcoins.
> Which factors? Who'd buy them at a premium? Wouldn't any auction of >1 bidders stabilize at face value?
Think of the stablecoin as an ETF. If people need to launder money or take advantage of a programmatic bug, that would raise the stablecoin price over $1.
By default, I'd imagine the reduced liquidity and counterparty risk (relative to dollars) would cause the stablecoin to trade at a discount to cash, particularly when auctioned by the government. (You have to spend resources monitoring the auction, closing the transaction, and cashing out to complete the arbitrage.)
