So I guess the non-reputable trader has to begin first the trade, face-to-face, and then the maker can settle it once he reaches home?
The bitcoin seller deposits the bitcoin to escrow. They meet, and the buyer hands over the cash. The seller can usually release the bitcoin from escrow there and then depending on the specific escrow set up, or release it a little later if the two parties agreed on that first.
It wasn't bisq, they had just discussed it online, and said to meet to exchange.
Handing over untraceable cash to a random stranger with no reputation, no escrow, and outside a peer to peer platform to mitigate any dispute? Well, I'm sorry, but that's just irresponsible.