User blog comment:Chopper4PirateKing/Jinbei will join!/@comment-81.235.193.246-20110823171805/@comment-206.188.84.8-20111124190335

Well honestly the whole point of the time-skip is that everyone has gotten immensely stronger. Usopp saying he graduated from the weak-trio etc. Yes those 3 have always been described as the "monsters" but that doesn't mean it has to change. Really what convinces me is Luffy is fighting for something important to Jinbei (like the other SH's) and it gives Jinbei reason to fight for Luffy to achieve his dream.