I bet there are a few posters here who trade traffic with that site. There were people here the other day saying how much they miss a similar one - nothingtoxic - and asking how much it sold for (answer : $2,000,000).
The frightening thing is that possibly the majority of young teenagers are watching videos like that every single day. Yet the only fear most people have is that their children are jerking off to boobs and ass.
http://www.alexa.com/siteinfo/theync.com#