Guys. For one, understand, with maturity, that flashbacks are essential for the plot to move. If we do not understand Kabuto, nothing would make much sense. It is important to know the background of characters, especially someone as prominent as Kabuto. Look at it this way:
We don't know Naruto's background. We don't know MInato's background. We don't know Kushina's background. We do not know Itachi and Sasuke's background.
Hmm. The story would be about some guy Naruto who mysteriously somehow HAD the nine-tails fox inside of him, and Minato and Kushina just somehow met, and somehow the nine-tails ended up inside their son. Itachi, how can Sasuke treat him as a good guy? He murdered his clan, what the? Sasuke, da faq, mental problem here :|
Yeah, this would be what we're thinking. THat is why, please, acknowledge the fact that this chapter's flashbacks were important. It was a good one. Only if you are mature would you understand, therefore, most of NB, ignorant fools, would not U_U