Is there some way of knowing a truck is set up to "roll coal"? If not, then this could just be the OP thinking poorly of someone just trying to drive carefully around a family. It would be jumping to a very pessimistic conclusion without evidence.
I've lived in the most libertarian state in the country for the majority of my life. I've never noticed any illegal dumping, and I've never heard any libertarians call anyone an anarchist (maybe once?). If anything, it's the non-libertarians that call libertarians anarchists.
> Looking back, I cannot believe how much I’ve been able to ship over the past 6 years by just following this one rule.
This seems to be his only conclusion about the effect of working a little bit every day. And I don't think survivorship bias applies here. If you work a little bit on a product every day and don't ship a lot over six years, then you're probably in the minority.