NinjaTurtleFan wrote a longer, very interesting post in another thread. But it was just this paragraph I wanted to respond to, and felt it was pertinent to this thread:
Realism and believability is fine when it's characters like Rahs, Penguin, Catwoman, Poison Ivy, Ventriloquist, Firefly, and others but a character like The Joker---is pure fantasy. What Nolan has done with him to me is just took a serial killer, gave him "war paint" as one of the bank robbers in the prologue describes him, and that's it. He's Joker in name and his actions only, but he's not really Joker with the makeup face. The hair and the suit make him Joker, but his appearance does not make him Joker.
See, this is a line of thinking that I continually dislike. It's one thing to say you don't like this Joker, or you prefer Jack's Joker, or you'd rather we got a more comic-accurate Joker, but I hate it when people say "This isn't The Joker."
It's like saying anyone who DOES like it doesn't really "get" The Joker, or worse, that anyone who could possibly accept TDK Joker is not a "true fan" of the character. Not saying that's what NTF intended here, but that always seems to be the implication when I read such a post. I like to think I "get" The Joker, and that I'm as much a fan of the character as anyone else here. And I don't know how, after watching that trailer - permawhite or not - you could look at Heath Ledger on the screen and not say "That's The Joker." He just seems to capture the spirit of the character perfectly.
Later in his post, NinjaTurtleFan says something like, everything will be okay if at the end he gets the chemical bath and his skin turns white. And that just baffled me. Like, he's okay with everything else about this Joker, but its just the lack of permawhite alone that makes him not Joker?
Picture this. Imagine NinjaTurtleFan were to watch the EXACT same film as us, with The Joker saying and doing the EXACT same thing throughout the whole film, only the version he watches has a slight CGI altering, making the skin on Joker's neck and arms permanently white. Does that mean, despite seeing the same film and the same performance, NTF saw The Joker, and we just saw a lame fraud who bears no relation to Joker whatsoever?
By saying that The Joker is only The Joker by being permawhite, its like saying his epic rivalry with Batman does not define his character. His insanity does not define his character. His laugh does not define his character. The Killing Joke did not define his character. Crippling Barbara Gordon, one bad day, "It's all a joke! Everything anyone ever valued or fought for, its all a monstrous, demented gag!", none of that means diddly squat in defining the character. The only thing in Joker's storied history that singles him out as The Joker is that little one panel at the end of his second appearance, where he has his shirt off, that shows he has white skin. Everything else....meh, that could be any old serial killer...