I have a proposal that doesn’t need any software changes. It consists on publishing an extension to the offer on additional info, where the maker offers to exchange with high security deposits and Mutual Assured Destruction using a 2of2 multisig account created outside Bisq (using email and electrum).
The current Trading and Arbitration Rules for F2F doesn’t consider or forbids an option like this, but I think it’s a good option for those who preffer to trust Mutual Assured Destruction instead of classic Bisq protocol, for a payment method where arbitrators “won’t have a way to settle disputes”. The biggest concern I have is how Bisq should proceed with this kind of offers in case of dispute. I think that Bisq should only focus on the 2of3 multisig, current protocol part, which would be still valid. On the second part of the trade, Bisq should laissez-faire to the users who aggree to trade in other conditions. In fact, this philosphy still fits the way Bisq is handling F2F trades: funds may be held indefinitely, or until both parties can reach an agreement.
This illustrates how could be an offer of this kind: