I get the feeling this is one of the things that no one wants to discuss, or at least it's a bad idea to try to discuss it.
Note how violent and immediate the reaction was, right when I tried to point to a segment of people who are the most likely to be in the target segment of the original article. I don't feel like martyring myself, so I won't push it further. But suffice to say, it does not seem like we as a society are ready to have hard conversations about why people turn to drugs.