OHHH, once again, we have misconcieved the word "fault." Ouch. Sucks to be stupid doesn't it? Yeah. JJB is not a FAULT. He is there for a reason. He is a retarded nutcase for a reason. He is annoying for a reason. Lucas knows this, and to be quite honest...JJB is possibly one of the most well handled characters in Star Wars. If we LIKED JJB, then Lucas failed. We are not supposed to. C-3PO was annoying in TESB but he didn't bring the whole movie down with him...and he managed to do and say some things that were actually funny. People make subjective evaluations of characters based on personal preferences all the time but when you have a character that is almost universally loathed such as Jar Jar Binks it becomes a very real problem. When a character is so intrusive, distracting, and absurd that it compromises an audience' ability to enjoy the movie it does indeed become a flaw. I seriously doubt Lucas created a character knowing ahead of time that it would cause such a severe, visceral, negative reaction in his audience. Jar Jar Binks "is" a fault.