The code wasn't malicious. The prompts their LLM'S followed were in plain text. They failed to read. That's on them.
I can say that this person should have considered what might happen if someone fell for it, and death threats were certainly firmly in the realm of possibilities, but let's not pretend this wasn't their own fault.

I hold grudges. But for me to expend that kind of energy it's gotta be a serious thing. I'm not worried about you spilling a drink on me a decade ago. I would definitely remember if you stole from my mother though.