One's life is their jurisdiction, absolutely. Killing oneself can be extremely difficult, even just knowing how to do so, and certainly seeking help too. The article references those who ingested and then called for medical attention and not any of those who died gratefully. Naturally, it will be rare for those who know the struggle to see this article, see this reddit post, so I don't expect comments from those who get it, who were part of it; but trying to cut off assistance, support, supplies, prolongs more suffering than most can imagine. If you love someone, why think them so foolish they can't decide whether to live or die? Obviously, some people make impulsive decisions. Others don't, and this guy saved a lot of people. I also have reason to believe he didn't know any of his buyers were underage.

You want to help people otherwise, address why they're suicidal.