In a traffic jam, wouldn't the alternative to leaving plenty of space be constantly starting and stopping? That seems pretty like a lot of work for the driver in a big rig.
> ding ding ding ding! We have a winner.
I cannot speak for others, but, at least to me, this reads as extremely condescending: it makes it sound like other commenters are basically picking arguments at random and you are the only one to know the truth.