I have a few as its hard to choose one particular moment. sakura's digs on naruto in part one, her stupid attempt at preventing sasuke from leaving, her fake confession and the silly promises that nearly got naruto killed. pointless character totally frustrates me. Neji's lack of screen time is another thing to have annoyed me. I mean the dude had the most potential and he ends up dead prematurely. Totally wasted talent. Also one of the things that drew me to naruto way back was the theme of hard work getting you to places and achieving greatness through sheer determination. Nowadays what family you were born into seems to be driving point or theme behind the plot. too much power too soon.
Having had my rant, totally love kishi's work. Naruto is otherwise epic