Grug is the wise fool in the spirit of Lao Tzu, St. Francis, and Diogenes. If you find it offensive, that's the intellectual pride it's meant to make fun of.
The principles are sound but I dislike the cave-man-esque nature of it. Even a wise fool is smarter than that. Language is foundational. Even a wise fool chooses words wisely.
”Wise men speak because they have something to say; Fools speak because they have to say something” -Plato
