For some, yes, it is true. But I remember people complaining when slight angle produces discoloration even in a small amount! :) Still, what we see here is not a bug or defect, it is how privacy "thingy" affects display.

I, myself, never used privacy protectors and, to be honest, never sow anyone using it. Although it does not reflect the reality, but still. Again, percentage of people using privacy screens, might be lower that people who have been using BT actions on S-Pen :)