Re: The Joker's background?
I agree with that.
I think I look too deep into it. The writers weren't psychological experts and nor am I lol
I do believe Joker attempted suicide. But you're right in saying it wasn't through the mutilation.
It was just a physical manifestation of what he feels he is deep down, an evil joke. It's all done to hold a mirror up to life and it's true and absurd self.
"You can't make an omelette without breaking some eggs - hehehehehehehehe "