I don't think it's getting better. When Luffy and Robin did the following:
- Stop Usopp from learning what is One Piece because of his selfish and bratty nature.
- Robin turned down on finding out the true history of the world.
I raged. I'm sorry, but that was annoying it's like saying "Two of the biggest mysteries of the One Piece world and the main characters are too stupid to want to know the truth."
Oda is already pushing his luck with the way he drags things out so that was just annoying.