Re: Facebook stats, pah!
I think there is a big difference.
I use Facebook to connect with friends, as an addition to tools like phone calls, texts, whatsapp, and the good old-fashioned face-to-face meeting (usually for several pints in a drinking establishment). If I do something and would like to share information about that with my friends, I will use Facebook as one of the methods. Pics, Videos and descriptions of events in my life others may find interesting. This is social networking, and where such content belongs.
Youtube, however, is generally a public medium. Many people seem to flood it with stuff which is only (or should only be) of interest to their friends and family. This is similar to Twitter, an entirely public forum mostly filled with personal content...
So my view would be that the world would be a better place if personal stuff was confined to Facebook, and Youtube and Twitter were used only for content you want the whole world to see. The quality of content on Youtube would go up, giving them a chance to make a profit.