Some good, HN-relevant examples are ADD and autism-spectrum "disorders". One of the hallmarks of ADD is hyperfocus, so ADD is a misnomer; it could easily be called, "doesn't pay attention when the teacher wants syndrome," or "is not interested in your boring trivia syndrome". There are a ton of people previously diagnosed with Asperger's who lead happy, productive lives. Both of these characteristics can be positive in the world of tech entrepreneurship, and could well have been positive in previous environments. [1]
That said, I think this guy making his central message, "Addiction is not a disease," is dangerous to the point of idiocy. In our current society, we really only have one mechanism for aiding those who will need a lot of help, and that's saying that they're sick. If he would like to make a full-scale assault on the disease model, godspeed. But a lot of people already want to believe that addicts could quit any time if they just applied a little willpower. Reinforcing that means that people who could be saved will die unnecessarily.
[1] See, e.g., the hunter vs farmer hypothesis for ADD: https://en.wikipedia.org/wiki/Hunter_vs._farmer_hypothesis