When I was grabbing that list of search strings for May 2008, I noticed a surge in hits coming from Forum de la LHSNHLQ, a French Canadian hockey forum of some sort. It didn't take long for me to see they were hotlinking to one of my images, a hockey puck to be exact.
Last year another forum was hotlinking to an image I was hosting and I had some fun with them. Instead of just blocking the hotlink, I replaced the picture of a hockey with an image that reads "Toronto Mike sez Don't Hotlink!"
I just did the same thing with Forum de la LHSNHLQ and took a screen cap. Click the picture below to see it full sized. They got off lucky. Next time, they're getting Goatsed.