Localethereum has the mean of payment Cash (in person), I wonder if Bisq could use this method, scrupulously respecting the confidentiality of the parties involved and also respecting the lack of communication until the precise moment of the face-to-face meeting.
My proposal for the debate:
To put an offer the bidder could indicate the country, the city and the place, for example: Morocco, Casablanca and Rick’s Cafe
The offer would have a calendar where the bidder would mark the days and times that he could go to the appointment, while the offer is valid. One month? two months?.
When someone takes the offer, he would select a day and an hour from the available ones.
Known the place and the time and known the Bisq trade ID, making contact would not be very difficult
It would be much better if the country and the city could be selected from a geographic database, to minimize the free text.
The norms of the operation would force the specified meeting places to be public (squares, bars, cafes). The arbitrators will take this into consideration in any dispute.
Thieves are a danger, but except the two sides no one else knows the exact date and time of the encounter, but it is a risk that must be considered.
This problem could be minimized by making it mandatory for the bidder to introduce three places for the meeting. The buyer must accept one of the places.