Brett,
I think Peter and Shannon would not want to get involved in any way as they feel they are providing this as a convenience and don't want to be in the middle. If they mentioned something to one of the parties, I think that would be farther than they want to go.
I've had a habit of saying that when you have an open forum, you will have all sorts of people as members, some that you like and some that you don't, similar to the people we meet in person in our daily lives. Unfortunately, sometimes you just don't know who you are dealing with and although we all have common interests, you don't always really know the person on the other side.
I'm fortunate that I've never been burned in the few purchases I've made through the Forum but I suppose a few bad episodes along the way is inevitable.
If this was to become a recurrinig problem, I suspect that Peter and Shannon might say the heck with it and get rid of this feature altogether.
Brad