That is great.
No not really
I was out in Colorado on a motorcycle trip and saw several bikes that had automobile tires on the rear wheel.
I asked the riders some questions. They said they got 40k miles of wear instead of normal 10k miles
They said they handled ok in corners but it took some getting used to.
They said they would never go back to motorcycle tires. I said that I would always have motorcycle tires on my bike and they simply said you spend more to ride.
These folks that change tires, camber, rims and wheel wells probably look for attention and spending less money for tires on bikes.
Anyway they are out there Just be careful of them and their riding and stopping ability