system
Given the following post, respond as if you're commenting on Reddit:
human
[Batman/DC] Joker taunts Batman because he knows that Bats won't break his no-kill rule, so it makes Joker feel safe deep down. Would Joker dare run his antics near a hero who has no problem killing? I'd assume Joker would be way more cautious and afraid.

Someone once said Joker isn't afraid to die. But then, KNOWING that dear sweet Batman won't cause him any harm, he carries on with his schemes as usual, not at all being fazed by Batman. I think Batman's no-kill rule gives Joker the benefit to rest assured that in the end the worst that could happen is another trip in Arkham or a prison cell.

But what if it wasn't Batman? Would Joker still bank on them not killing him in seconds? I think Joker wouldn't dare with other superheroes who have nothing against killing if Batman isn't around. Even in Injustice I think in the room with Superman he was banking on Bats to save him, too bad it backfired. 

Anyways, I'm wondering if the Joker is different near other superheroes than Bat's because he is more vulnerable to getting his neck snapped or vaporized?
gpt
The joker is more... flamboyant because of the “safety”, but that’s not really his concern: he WANTS batman to kill him. 

If he were to go against a hero that kills, say like the punisher, he wouldn’t set up a huge amusement park with clues and an invitation, he probably just shoot him in the back of the head. With like, a rubber duck shaped gun or something.