IAAL but likely not in your jurisdiction, and I agree with this, because the biggest "legal" concern I would have as the linked OP is the company coming back and blaming me for some software I wrote that was out of my job scope entirely.
I would add that the goal isn't just to convince the company to delete the software, but rather to acknowledge and accept that there is no support, no warranty, and if things go wrong it's on their hands.
I would add that the goal isn't just to convince the company to delete the software, but rather to acknowledge and accept that there is no support, no warranty, and if things go wrong it's on their hands.