Aside from all the stuff that's already been said (12 year olds with boobs as big a Jupiter, the "inner force," etc.) I'm getting pissed off with the fact that the producers are milking the series to their last drop and are quite frankly making the series WAY LONGER THAN IT NEEDS TO BE. There are animes out their with like 200+ episodes, and every time I notice that I think to myself "What's the point by now?" Then I remember...fanboys.....
That's why I liked FLCL and Fullmetal Alchemist. They weren't overly drawn out and actually (at least in FMA's case) had well developed plots. I'm going to pick on Naturo here for a minute....
Naturo's storyline is simple. The characters are faced with a problem. They solve/kill the problem in about 10 to 20 episodes. The producers/directors decide, "Hey we should do this again. Even though the conflicts we put them in by this point are easily solvable by a three-year old with ADD, it's still making money." And then they decide where the plot is going next:
Naruto and the Water Illusion People. Wait that's been done. Naruto and the big tournament. Wait that's been done too. GOT IT! Naruto tackles crochet!