Something I've noticed about these people is that some of them are obsessed with public transit busses and school busses. While I could understand being interested if say, you bought a used one from eBay or Craigslist to convert into an RV and did upkeep/repair on it, these people oftentimes aren't even old enough to drive mom's Chevy Lumina, nor would they do anything with said bus.
That channel you found is a goldmine though, here's some infighting:
Speaking of cringe, here's a video of from the target of the above video filming featuring both people who likely don't want to be on camera and a random older guy staring at them speechless (His dad maybe?)
At one point he did leave YouTube once after allegedly closing someone's account: