i also have a suggestion for cheesemoo, although it does require more work for you.
can you update the title with the item we're currently looking for? that way it might attact more people to join in the game...
i.e. <<ATOT Treasure Hunt>> - Currently looking for : X-Y-Z
your call, because it does produce more work for you. even if the item has already been posted, it might attract a new person to just come into the thread.