Paul Crowley

The only example I can think of is that some websites, in order to prevent image "stealing", will check the Referer header on an image before serving it to make sure it matches the serving site, otherwise they substitute an image that says "don't steal my images". However, most such sites default to providing the correct image if you don't supply a Referer at all, so for the most part they will work better, not worse, after this change.