Actually I quite agree with what this reader had to say.
I have seen heavy vehicles
speeding at 80km/h sometimes, wonder why they never catch, if they
had been strict in their
enforcement, then such things would have been minimised.
It's extremely dangerous for heavy vehicles to speed, because
due to their massive weight, more distance is required
for them to grind to a halt.
That's why when I drive, I never let heavy vehicles follow me
closely behind, I will just switch lanes.