This just won't die will it? I confess, I was one of those people spouting off about the cut smile making the Joker more psychotic than the permawhite Joker, and I still feel that way. In almost every variation of the Red Hood origin, Batman was there and indirectly responsible for the Joker falling into the chemicals, at least that much we know. TDK Joker, no matter who he was before in life, is choosing to be the Joker. People have scars all over the world and lead a regular life. If someone actually looked like the comic Joker, would they not have a pretty good reason to become a tad bit unhinged?
TDK has no excuse for his behavior, and no reason to be running around with makeup on his face. To me, you have to be a pretty screwed up individual to live that way, especially when your normal, for all intents and purposes. How is that destroying "99% of his awesomeness." The mentality is the same, but the sympathy is lessened