You are right, but YouTube is also a massive repository of human cultural expression, whose true value is much more than the economic value it brings to Google.
Yes, but it's a classic story of what actually happened to the commons - they were fenced and sold to land "owners."
Honestly, if you aren't taking full advantage within the constraints of the law of workarounds like this, you're basically losing money. Like not spending your entire per diem budget when on a business trip.
So was Flickr