My thought is to leave this forum as described in the main Geocaching Hitchhikers forum, "Talk about trackable and oh-so-collectible Geocoins." Threads like "Trading, Wants and Offers," "Coin Contests," "Missions," "Mailbox," "Favorites," etc... could stay in this thread. But sales of any trackable items (including geocoins) could have a completely separate forum like "Trackables for Sale."