These excuses cannot be used to discount the role of ChatGPT in this. In highschool and at university I knew a few guys (n = 7) that attempted suicide. They all survived because they didn't have the knowledge of "known to work" methods and the survival rates of other methods. And then people noticed their struggles, they were sent to therapy and thankfully all recovered.
The point I'm trying to make is that, even telling someone (or not) that "this drug overdose won't kill you" and "you can hide the noose red marks on your neck like this" can literally be the difference between life and death. I would even lean on the side of "no information and straight refusal is the better action" here.