That's a photo of a single tire at 4,000 miles per the details. No one (that I have seen) is seeing tire failure at 4,000 miles. It's usually 10,000 miles +/-. I'm well aware of hayseed's post and knew there were none in this thread that show the same mileage on the same car showing the wear on the same side. I can post a photo of Goodyears, PS4S, and Pirelli, all on the OEM 21" wheels on my plaid at different mileages, and pre/post alignments or other suspension changes and make random assertions from them at different stages of use. Secondly, you have to take into consideration the conditions that the tires are driven in, is winter time more wet than summer when he's driving? Because damp roads will let the tire slide with less friction, causing less wear.This guy is running the T0 spec winters with stock suspension and no abnormal wear. He's made a few posts through the thread Plaid 21” rear tire woes - factory defect?.
And I cannot find a single instance of the T0 spec Goodyear All-seasons failing either.
I have plenty of experience. I know tire wear patterns. This is not normal. If you had a fraction of the experience as you claim, you would realize that camber wear tends to manifest differently -- gradual shoulder wear until the tread is worn down. Not perfectly even wear until the tread separates. You would also realize that poor alignment manifests on *all* tires, not just low profile tires.
I'm surprised someone claiming to have a doctorate degree is using both confirmation bias broad generalities as basis and validation of an opinion.