Quote Originally Posted by Lacuna Caster View Post
That's a much more interesting take, but I don't see any indication that Joker's own backstory is a fabrication or false memory, or that he had any particularly dark impulses prior to his wife's death, et cetera. It just feels very perfunctory.
The thing is, he has a LOT of backstories. There is no way of telling which is real or if any are. Its not just retcons or things like the nu 52 or whatever, his backstory is totally unknown and nothing can be confirmed. He also is well established at messing with people through lies and manipulation