I suggest to advice people that does trades, to use a third part.
So I suggest to add more mods to tradeland, and strongly recommend them to people. I was a third part once and it went wrong cuz one of the parts was impatient and sendt the details right to the other part. But the chance should decrease strongly with a third part, and people might feel safer.
sry if I wrote to few details, but I have alot to think on atm.