I have a theory, well many but this is one of them.
Everyone wants to stand out, be recognized or appear exceptional. Most people don't want anything to do with the effort required for that recognition to be for something worthwhile. So they default to lowest effort to stand out or be exceptional. Like exceptionally stupid or offensive or outlandish. It's the reason I smoked cigarettes, it's the driving force behind all sort of stupid juvenile delinquent behavior and it's the reason we are asked to recognize 26 gender pronouns. It's hard to be the best at running, welding, math, wrestling, writing, photography or any other actual skill or talent that would gain you notoriety. Bolt a bunch of ridiculous shit on your truck or die your hair blue and claim you are a non binary unicorn, not so hard.
Now I reserve some respect for people doing things that aren't exactly smart but are difficult and take some mental/physical effort to stand out at, say like hucking yourself through the desert at high speed on a motor bicycle
Color me biased.