What specifically makes him “that kind of person”?
I used Facebook pretty early on and still have my account but login less then once per month now.
This. It's the same problem as when participants self-select into a study. They have different motivations than the average person.
I'm just making the point that if you are persuaded by this article to also get off FB (because it made his life better), you might be disappointed, because you weren't already dissatisfied with FB.