re: Batman's no kill rule makes no sense

a dishwasher at my old job died from one hit. Took one punch to the head. had an aneurysm and died. So yeah I get you r point, I think in the comic world we must assume, that unless they are killed, they do not die. Meaning, you can get injured to the point of death in comics, and as long as you have time, you will heal. There is never really many instances of lasting injury. Even broken backs and severe head injuries just require a little downtime.