Since I read about bristles in food after cleaning the grill, I've always been checking for remnants after brushing. I never found any. And I wonder: how are those remnants supposed to get into your food? They are metal, so don't they just fall down into the grill, if any break off? Maybe glued into old fat and other gunk? But you want that gone, too, right? Also, don't you use a rag to clean off other dirt, and wouldn't that make sure that bristles are gone?

Is this a myth or actually a problem? Some commenters do call it fear-mongering here, so what is it?

I also think I never read anything about this except in US media, so does this not happen in other countries? Different brushes? Different cleaning habits?