[cd34]

A DCMA complaint needs to come from the copyright holder -- or an authorized agent. That itself becomes difficult. I can look at some content and say, hey, I know that is copyrighted, but, how do you find the copyright holder? You end up finding the original site that is being hotlinked, locate the gallery, guess whether that gallery is content that the webmaster paid for or is sponsor provided content.

But, you are right, it is the right way to do it -- and requires the vigilence of someone that has been hotlinked that can file that paperwork. I've been documenting it for a few clients so that they can file. It will be interesting.