I dunno maybe this may be really complicated, but at the main Pin Trading areas (Downtwon Pin Trading/Westward Ho/PT Flea Market) have a "look out" list of pins that are not official Disney Pins, to let guests be aware that this are/should not be traded. Maybe this will lessen the amount of scrappers coming into the park. And perhaps help cast members not have to deal with whether or not there pins or guests pins are trad-able.
Maybe this post should be in this topic or that scrapper topic..













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