There are a lot of ways to prove Penguins fan superiority to any fan of every other team. It is also easy to pick on the Capitals because their fans are especially dumb. I mean, their IQ is less than that of a box of rocks. Don't just listen to me...this shirt totally backs it up. They're even dumber than a two by four.
This Great Moments feature and the merch (mostly shirts) have been a huge part of PSAMP for the past 2 years. Why would I doubt a generic shirt's message now?
(thanks to Cotter for the banner pic)