I personally don't care about people "stealing" pictures. I have more than 10,000 pictures on my site, some high res, some crappy, and I say - help yourself. Pictures are just pictures, they don't mean anything to me. Anyone can take them. Plus, my website was never meant to be some sort of commercial entity. It is just a way for me to look at my collection. Ultimately, the only thing that matters is that I own the posters and the people who steal my pictures - well, they only own pictures.
T