I'm sure it's just the big fish swallowing the little fish corporate empire shit.
I saw something on Youtube(I'm thinking Jim Sterling), that was going on about CR laws, and how they're so open to interpretation that big corps like Sony and the like are just seeing what they can get away with. They're trying to copyright words and phrases like "Let's Play", just to get a slice of those videos on Youtube. They've got enough money to do whatever, so they're essentially just throwing shit at a screen and seeing what sticks. If even one of those absurd copyright filings go through, it's worth it to them.
Overall though, this was kind of inevitable ever since Google purchased them. Youtube is so big now, that they're going full corporate. No more fuckin' around. No more free advertising. No more using licences without paying. I give it a few years before it's basically a subscription based network like Netflix. You know they're looking at Netflix's crazy subscription numbers and wondering why the fuck they're giving their shit away for free. That "premium" subscription package is coming.
End of ramble.