The running made me laugh so much! The way the limbs move is beyond hilarious and I like how the commentator doesn't even have to try to be funny.
AWESOME!
As for the noob rageaholics videos, I actually think they are fake and that the riders are better than what they pretend. I say this because sometimes they do deliberate actions that seem to suggest pre-knowledge of the physics and game. For example, in the above video on the second track, Big Drill Rifting, the guy clears the high jump at the beginning way too effortlessly, which to me is suggestive of sound knowledge of the fundamentals.