I think people are overreacting to Doffy's rushed backstory, there's obviously a lot more that's happened in his life since he is after all a grown man. It's just not THAT necessary to explore right now, we've just been given a glimpse of his superiority complex and insanity. Once you hear an 8 year old child accuse his father of letting his mother die because the common people around them are so dirty, and that he used that as grounds to kill his father, then this child gets rejected by the other Tenryuubito after he already said what he hates most is being looked down upon?
At that point I don't need to see anymore until after the fight. What's interesting about Doflamingo is his family and the characters he seems to enlist, and how they're all so thoroughly devoted to him. As for motivations, I've seen enough, and anyone who thought Doflamingo might be unique to the other Tenryuubito in their warped superiority complex was not thinking realistically after witnessing the others.
I liked this chapter though, particularly for the ending because Mingo had been hyped up so much, it made sense for him to be caught off guard as Law's ability is pretty hax, but he instantly responds.
So Law's room is now able to keep DF users from reforming - Logia in particular… That's scary.
Fujitora and Sabo just packed up and left it? I'm cool with that, considering there were bigger things happening on the island than the #2 of the Revolutionaries being there to help take down Mingo. If this was Akainu he'd have kept going in on Sabo, then Luffy and Law, then deal with Mingo later because Absolute BS.
I don't see how Doflamingo deals with Fujitora added to the challengers... it's still chaotic to gna wait to see how Oda gets this to be a Luff-Mingo showdown.
Nice interactions between Koala and Sabo :)