I also notice that video has 10 times the number of views as the rest of the videos of her, presumably because of the title.
I had a couple videos from when she was younger and wearing diapers and a shirt when she was wading in the bay, and got a comment from someone who wanted to know what brand of diapers she was wearing. (wtf?) I deleted the comment of course, but a while later I see that YouTube has deleted the video for "inappropriate content" (double wtf). I mean, she was more covered up than if she was wearing a two piece bathing suit.
The thing is, even if someone is a perv and gets off on this sort of thing, it isn't endangering her. I'm not going to lose sleep over it. If I am really that worried about protecting her from pedophiles, I probably shouldn't take her anywhere in public, where someone could follow us home or otherwise directly cause her harm. I'm not going to live my life in that kind of fear.