I've bought and sold on there for many years. The nice thing is that you see the users feedback to the left of every post they make. I'm up to 128 transactions with 100% feedback. I don't recall ever having any issues buying or selling there but I'm cautious with those who don't have a feedback history. The classifieds are a huge part of that forum though and the moderators get pretty involved when there are issues. I can imagine its a huge headache for them.