I understand that there is a real interest for a trade/FS forum on the PurseBlog. As much as I would love to accomodate your wishes and create a safe trading/selling spot for bag lovers, it is problematic.
I am in no way accusing any of our members of being willing to (un)knowingly ripping others off. However, imagine the following situation. In case of a transaction going bad, there could be major implications for us (the board owners) because we provided the grounds of a fraudulent exchange. Currently, both Megs and I are busy with school, work and other issues and can't see a lawyer for advice regarding how to work out the liability issues. Afterall, this is the internet, and hiding behind a fictitious nickname is easier than finding a Starbucks in downtown NYC. There is a reason why big auction/trade sites make sure you identify yourself properly - there is no way for us to keep track of trader's/seller's/buyer's identities in order to provide some sort of buyer/seller protection, either.
I am sorry that we can't help you guys out officially, I will see if there is another way this could be accomodated, perhaps on a private invite-only basis for long-term members. I will keep you posted.