hahaha, m-of-m multisig, this is the first time I see this, very entertaining... used in mix transactions trustlessly?? This is even more a joke, by trustless you mean the m members doing mixing are not trusted, so if there is one bad guy, you all screwed, because m-of-m address in order to spend, you need everyone to sign, if one bad guy not sign, your fund is locked forever.
This seems written by a guy who has zero knowledge about multisig, except the word "multisig".
That's why the altcoin there are so many scam coins.

Actually if one person doesn't sign, the transaction is simply rejected, the same as DRK.