How does it damage the PN junction of the panel is open circuit or barely loaded? It doesn’t seem logical that this would damage the panel, but I’m open to being proven wrong.
There are all kinds of follow up questions to ask as well, but I think the main one is how big an effect are we talking?
From personal experience in Europe, I can tell you that it sounds great in theory, but it’s horrible in practise. I get routinely blinded by headlights here and I feel like it has only gotten worse with the advent of LED headlights.