Tires...wearing on both sides?

This is that chronically plagued Nissan Frontier. Could you clarify exactly how the tires are wearing?
In your previous posts you said they were wearing on the outside edges only. Are you saying that now they’re wearing on both the inner and outer edges of EACH rear tire?

If so, that is caused by underinflation. The tires are now at 37 PSI so does this mean the alignment tech overinflated them a bit to even out the tire wear or did you inflate them?