None of us (except Amber until she bans them) have to do anything. I think that dude was way out of line. But I’m surprised to see people saying we should be less nice, lol. He’s not our patient or our burden but we can still try to push him in the right direction if we choose to engage with him, which all of us who posted before he got banned did.
Some people like snarky, some people like something else, whatever. He sounds like a dude with problems who grew up on 4chan and porn. If he has no irl social connections and is used to seeing “kill yourself” flung around everywhere, maybe he doesn’t realize that it’s not just a sassy retort. Or, maybe he does. No harm done in trying to explain it, though.