I am quite intimate with those. Too intimate. So intimate that I got F****D. And real good,too.
Here's the main problem, shoddy workmanship aside,
It's not stamped. It's simply flat stock sheared and creased on a brake.
The real quarters are compound curves. Think of a section of the surface on a beach ball.
This panel is flat. That is the same as trying to cover that section on the ball with a flat piece of paper without wrinkling it.