> And why is it the current trend in automotive (specifically, truck) fashion?
It isn't just trucks. Someone posted a picture of a BMW sedan with a really big grille in this very thread. The Toyota Camrys* even has a similar design: https://www.cars.com/articles/how-the-2018-toyota-camrys-tri....
> The observation is that it’s fashionable because aggression is itself fashionable, at least to the target market.
It's just a big grille. I think the "aggression" aspect is more in the eye of the beholder (or the trolling concept).
> I seem to recall an interview with a Ford or Chrysler exec a handful of years ago where they said, point blank, that aggressive front designs are a key selling point to their customer base.
Assuming that's true, are you interpreting the word "aggressive" correctly? It has many senses besides "hostility", e.g.:
https://www.merriam-webster.com/dictionary/aggressive:
> 3 : strong or emphatic in effect or intent
> aggressive colors
> aggressive flavors