Traded by
Shows users trading this item (who marked it for trade in his/her inventory)
Wanted by
Show users who is looking for this item (who added it to his/her wishlist)
Trade in
Allowed only for authorized users. Same as Traded by but filters users and shows only those with whom you can trade (who is trading this item and looking for items you are trading).
Trade out
Allowed only for authorized users. Same as Wanted by but filters users and shows only those with whom you can trade (who is looking for this item and trading items you are looking for).