I keep reading because after years of following, I want to see the end. Other than that, there´s not much more left to do than make fun of how bad this manga has become.
The concept of unpredictability is what makes it so bad, or rather, the heavy focus on it. A certain amount of unpredictability is necessary to keep a story exciting. But there´s a difference between Naruto digging a tunnel underground to sneakily ko-hit Neji, and Madara being stronger than all bijuus because, because. Or Kakashi using MS-jutsus dozen after dozen, without chakra fatigue.