u know those wiper marks that are left on your front windshield usually after you use the wipers in the rain? well recently i noticed that mine seem to be permanent, looks as if the wiper blades have scratched the windshield anyone else notice this? or am i the lucky one here?

 

That's wild. So far so good here......not sure what is going on with yours

 

Something has to be pretty hard to scratch glass. I've seen it happen when someone used their wipers without any blades on them, but that's about it. Is it really scratched, or does it just look scratched? If you scratch at it with your fingernails, are there grooves?