Originally Posted by
SpiderClops
This is so not what you were saying. You said "even Punisher doesn't kill every criminal he meets". This to me, implies that he sometimes spares them. Which means you were implying that Batman might be sparing Joker.
Even forgetting that, half of what you came up with are just contrived and makes Batman look kind of incompetent. "He hasn't met him yet. Doesn't confront him directly." Wow, just genius.
If Joker isn't a murderous maniac so much so that Batman thinks he doesn't deserve to die, THEN THAT ISN'T JOKER!