Is it not true that Binance Singapore froze a user's account because they something they did not want?
This is a matter of domestic laws from Singapore and not the actual guilt itself. CoinJoin transactions based on Singapore's AML procedures may have been violated by the user when they have mixed their withdrawals for privacy.
i would love to see a source showing that MAS has published specific guidance or that this is a statutory issue. i doubt singapore AML laws refer to coin mixing. i also skimmed over the new payment services act and it seems pretty lax.
i wonder if binance SG's partners (Xfers or vertex venture holdings) have an internal policy about overt coinjoin/mixing, and the partnership is contingent on complying with it. something tells me it's about an abundance of caution rather than the law itself, and that it's not really binance proper that is behind it.