Right now, goods that are stolen can be tracked down. While this can be useful for finding criminals, this injects a new aspect of paranoia to trading. If you want to find someone's village, steal an object from yourself or a friend, gather the scents, then trade that object with the person you want to locate. Your scents can now be used to locate that person's home or village.
Proposed solution: make stolen objects show if they have scents pointing to them.