I think this is good. One thing it will do is if your at the site and your setting are to show nude, violence then they show up. But what if you have some come over and you want to show them something at your site here and it will show things based on your setting, It may be ok for that friend to see the nude, violence images but again they may not like it so the new change will also be nice because I know my mom and dad would not like seeing them.  So I could thumb try the images in the gallery and not worry about them seeing things in the thumbnails that would get to them.