I got the impression that she didn't want to be photographed at HP events because she didn't want the images to be seen by anyone who knew her professionally as Judith Rumelt--a strict separation of fan-life and real-life. She was working as a writer, after all, and I don't think she wanted her bosses to know about her hobby--especially the plagiarism flap. Now that she's not worried about that, she doesn't seem to be avoiding cameras on principle. She's got to promote herself. It's part of author-life.