When you turn the zoom line thickness feature off, there is NO line heirarchy. It sure is a pain to constantly switch that feature on and off. And when it's on, why must it fatten the lines as I zoom in?
I guess what I'm saying is that the feature doesn't make sense when zooming in, which often is the case.
I see its usefullness when zooming far out however.
Inevitably, there should be a way to scale the line display.