Originally Posted by PaulRivers

A certain number of posters on here have convinced me that people with obnoxiously bright lights are done deliberately and they don't care how much they're hurting your eyes, so I go the other way - turn my light up to high, flashing, whatever's available on the light I'm using to let the other person know how annoying their light is. I don't get the feeling that being overly polite is going to convince them of anything. They might get the message if lots of people start hitting them back with light though. (Of course after they pass I go back to my usual light level). Fortunately I don't see that many people being over the top obnoxious, but there are a few.