Although after playing a few levels, the game is partly to blame. It's far too easy to die - I don't think I've had more than a few seconds of play before dying and having to restart. Gets frustrating.
The game has great physics and fun game play, but it fails socially. It really needs a few learner slopes to start with that introduce the concepts.
Crowd-sourcing of track design is a great idea, but the game needs a better way to filter out the crud. Most of the designs are personal experiments, and even the better ones could really use a few checkpoints.