Nobody said arbitraging is an easy job. Still, I don't see any better alternative to protect sellers somewhat from triangulation attacks.

By the way, the scammer doesn't know nor would be able to guess the bank account number that sent the fiat transfer.

An anonymous scammer can cook up any screenshot or pdf. Maybe when lightning comes to Bisq 2 I will consider using it.

SwapMarket

At least in Bisq arbitrators are people of good reputation who also posted some collateral to do this job and earn some income from doing it.

I believe in case of dispute buyer and seller must submit evidence to convince him to rule in their favor.

In the particular case of a triangulation, the seller would submit evidence of the suing, and the scammer buyer would not be able to submit proof of payment for the sats, as he didn't pay for them.

oomahq

lightning

I got scammed (but you don't have to)

purpurato

who would arbitrate this? with a bond, now the seller can game the system and falsely claim he was scammed by the buyer to earn the bond. they cannot go to court etc. 