Direct Linking to Images Blocked

I’ve noticed that a number of people, pretty much on a weekly basis, are deciding to link directly to images on this blog rather than copying the image to their own server. I’ve watched it happen for quite some time, but after seeing a few spam blogs do it, I decided it was worth putting a stop to: so, from now on, if you want to use an image on this site, please copy it to your own server or blog. Thanks!