Board Thread:Club Penguin/@comment-27383368-20160424224642/@comment-24801399-20160424231811

Well, the concept of "rare" is very subjective. This wiki merely uses four years as consideration because it is a reasonable amount of time and is not opinionated.

People consider "rare" to be something that will never return again, like an anniversary hat or pin, or something that is almost never seen in the game, or etc.

From the standpoint of the system used by this wiki, no, but it could be from anyones personal opinion (which is what this concept is anyway)