I've seen that thread, posted in it, seems to be a mix of all trucks, not just air rides.
I suspect driving style and the tires. My pirellis aren't wearing anything like the goodyears did. My goodyears actually wore worse on the rears across the middle 70% of the tire, like it was slightly over inflated.
I think that was the limited slip being new and tight as I'd hear the inside rear tires when making tight turns but either way, the stock goodyears didn't last me more than 15-20k miles and I pushed them to 25k