User blog comment:ChiroSamai94/so is Strong World canon?/@comment-3345720-20110204002210

let's just say it's a non-canon. here are my reasons: etc.
 * in the anime.. those were just tributes to the movie.
 * we should consider movies a whole different world from the canon looking at movie 9
 * Shiki never helped Luffy's bounty raise, despite that he was a strong pirate of Roger's time and the first to escape from impel down
 * how in the world did Marineford heal so quickly after being part-destroyed by Shiki