Stupid, and it gives them more power to control and fine.
Blocking the passing lane is one of the most dangerous activites on the freeway, it breaks the flow of traffic and causes hundreds of high speed lane changes.
While the weirdo is squatting in the fast lane, eyes straight ahead so that he can pretend not to see the havoc he is causing, the rest of the thousands of people on the freeway are all having to adjust to his psychologically caused, deliberate driving incompetence, it is a serious problem, not a pet peeve.