It seems to extend further than "stranger danger" as well. I have for example seen many articles published in Swedish newspapers urging parents to be careful about posting pictures of their children. Even pictures that may seem so innocent and cute. Because, you see, some perverted paedophile out there might be getting himself off looking at those pictures. Now, would this pose a greater risk to the child? I have never heard of a case where a family's online photo album was used to track down a child, abduct it and abuse it. And it is not even suggested that this could happen. Rather, it is simply assumed that we should indulge in parental horror that someone out there might masturbate to the picture of your beloved child, and that this on its own is somehow a violation, though the impact on the child is of course zero. I.e. heavy on the 'ick' factor with not much else behind it.