Not that I know of - you might call me a perfectionist. I'm also an industrial designer, so I tend to pay attention to details.
All of that said, I don't see the relevance of any of that: having a loose/wobbly hinge on a brand new 1800€ flagship headphone is not acceptable in my book. Its not a slight difference: one side is tight enough that it doesn't move on its own if I tilt the headphones, and doesn't contour to the head unless moved by hand, whilst the other wobbles freely, to the point where it can rock slightly in the sideways direction, not just around, because there is a slight gap between the two parts.
That and the unevenly stitched pads, made from fake leather, which cost 300€ to replace - when I can buy perfectly identical pads, made from actual leather, for 20€ for my other headphones...
Anyway, I'm not looking to crucify Denon or the local dealer here; I'm just trying to gauge if its a common issue. Others might be fine with it, I just find it inexcusable at this sort of price/quality.
My father has a pair thats perfectly fine, with no irregularities, even after a year of use - they were the reason I bought a pair myself, so I know they can do it right.