This thread has really been interesting. Excuse my ignorance, but when it started I thought he was talking about riding a "blacked out" bike with no chrome. I've never heard of running a car tire on a bike. Very interesting concept and apparently successful for a lot of people. But then, I'm also trying to figure out Instagram.
I know the feeling, i have a smart phone that does 1,001 things of which I only use 5 features,....LOL.
Dark side is nothing new, it's been around a while. It's roots are in the "budget builds" with the fenderless chopper guys throwing a used car tire on the rear only because it fit the rim. From there it branched out to the long distance riders who got tired of wearing out motorcycle tires in 10K or less. So xcept for the "budget builds", wheel size and front fender clearance have prevented most of the current bikes from using car tires on the front, or going to what is called DoubleDark (DD).
However with the new crop of electric, hybrid, and micro cars I'm sure car tires small enough for the front is just around the corner. Then the HD folks can run DD and never have to change a tire.
It'll be interesting to see how this develops in time.