This seems a bit insensitive. "Pirate" clothing is required in order to preach the gospel of the Flying Spaghetti Monster. To wear it as a joke mocks Pastafarianism and a truly sensitive person would NOT have posted such a thing.
It's a calling, and Piratical garb are the official raiments of the church of the flying spaghetti monster.
What did you mean by "...bringing religion into this?" Religion is everywhere.
May his noodly appendage brush you with his Al Dente greatness, Ramen.