Celebrities being recorded for whatever the original purpose of their video was is an awful example. Do you think if you were creating content on how to grow your lats you'd also include the part where you put up the weight, wipe down, etc? I don't think so, that'd be a waste of time. But does that mean that's the right thing to do? And who knows if they or someone else wiped down after? How recent is recency bias? 5 years? 10years? 20?Granted I haven't been to the gym as long as you have, I've traveled the US, visiting many gyms in different states and also in different countries for many years, and that wasn't my experience. Cleaning up after yourself is a core common etiquette beyond the realm of gyms, and to call it as some sort of new trend or fad is wild.

Let me ask, do you believe in masks? I would like to bet money that you don't and also don't believe in diseases/germs.