I think it points to a few things. for one thing, the author pointed out several things about herself that I think are probably contraindications (i.e. panic attacks) and it doesn't sound as though she actually had ADHD to begin with. I can't believe anyone would be surprised that absent the condition its intended to treat that something like an amphetamine would have an addictive potential for that subset of people (which may, for all i know, be the majority.)