Quote Originally Posted by AssertnFailure
I don't really get what the motivation is for becoming a shikibukai though. It seems like a pretty distinct dead-end as far as a pirate's ambition goes.
you can do anything you want and the WG is not on your ass, seems like a pretty sweet deal to me

becoming a Shikibukai is not the end of a pirate ambition, Moria wanted to become Pirate King, so does BB, Doflamingo has a plan for a new age...

as for Kuma talking abaut Ace, the only thing he asked was "Is Ace Luffy's brother" as far as i can remember