So what sort of piracy can you get up to? Pirate-themed items are all half-price in the game’s microtransaction store through the week, so you can look the part. You’ll also be automatically made to look the part in the Corsairs’ Stronghold battleground with a pirate or ninja costume (ninjas being recognized as the natural enemy of pirates for reasons unknown to man). Last but not least, loot drops in the Shattered Fleet dungeon are doubled, so you can pick up additional booty along the way.
Source: Official Site