According to this post and this post on her blog, she spent the better part of the day poking around the 'net, looking for sites that were using her pictures illegally.
I'll admit to having a moment of worry about her attitude toward my reposts, but that turned out to be groundless. Her gripe (and it's an entirely appropriate one) is with the asswipes who remove her watermark and other identifying information from the pictures, then repost them.
Folks, Christine Kessler is an artist, and these photos are her source of income. If you're going to share her work on your own site, please give her credit for it. She deserves it, and to do any less is stealing.