On the other hand, if you suddenly have 100 times the traffic an image on your server got hotlinked elsewhere, wouldn't you want to know what is going on? There

On the other hand, if you suddenly have 100 times the traffic an image on your server got hotlinked elsewhere, wouldn't you want to know what is going on? There's upsides and downsides.. I can't really make up my mind what I'd prefer, other than the utopian option of "all users know what they're doing and how to configure their browsers".