The item was originally meant to be a member's only item, but in 2010 was released as an Easter egg on Early Poptropica. The card still showed "Member's Only" when a player - member or non - received it from the Easter Egg spot. The text was updated some time after.
The Poptropica Creators originally made it to be a members-only item. For a time after the Easter egg was inserted, it still showed as a members only item.