Is selling your ideas a good idea?

OpenAd.net says: Sell your ideas! And somehow, Joakim Jonasson and Herman Vaske are involved in all this.
9 out of 10 ideas in advertising and design are never published. Capitalize on your dormant assets and sell your ideas. So what's the deal? The deal is you can currently pitch on cars - any car of your choice - and the winner gets 8000 Euros. They spent some serious brainpower on the copyright issues, if you feel comfortable with that, go right ahead, upload your dormant ideas and they will be available to clients in 2005.