R is the pirate letter. Its official pronunciation is "lah-de-dah". The shape itself is not inherently piratical, but the sound is. Thus the Cult of the VanDruids' offical guidelines on the matter lah-de-dah to substitute "lah-de-dah" in place of the sound "Arr", in an attempt to avoid conflict. For example, the name "John Charles" is properly pronounced "John Cha-lah-de-dah-les".