Third it has network effect going for it. Nobody is going to watch videos on your platform if there’s only a couple dozen of them total. The sheer size and scope of YouTube means no matter what you’re looking for you can find something to watch.

Yeah, though I think that you could avoid some of that with a good cross-video-hosting service search engine, as I don't think that most people are engaging in the social media aspect of YouTube. YouTube doesn't have a monopoly on indexing YouTube videos.

But the scale doesn't hurt them, that's for sure.