Chris Jenkinson wrote:
Actually, we were discussing this very issue on IRC earlier. The main problem we found with this was that it would be a new target for vandals - to recategorise various images into unrelated categories. Also, when going through the filter to select categories that they do not wish to see, people might find it objectionable to have content like beheadings or sexual activity available for people to view. I'm assuming of course that all 'categories' of images like this would be on by default - also, this would only be practical if it were for registered users, of which the vast majority of visitors aren't.
Google has SafeSearch - and how many millions of people use Google?