When Neil was pitching his ideas about crazyguyonabike, no one gave it a chance. (I was there)
When I had the idea for a website that would pull the entire touring world together for inspiration with no language barriers (The Loaded Touring Bike - Photo Gallery) no one gave it a chance.
Unlike Neil, I didn't know the first thing about the internet/coding/etc.but I knew my idea for a site would go worldwide quickly and in the end I taught myself how to create it, through independent study. [www.loadedtouringbikes.com]
If you want to create something you have to run with it. It's your idea, it's your baby. In general, no one else will care, or they certainly won't care as much as you do.
That said, since creating The Loaded Touring Bike - Photo Gallery pages, I've had my hand in designing, creating and maintaining several other wide-audience web successes. If you want to contact me through my website, I'll listen to your ideas, see if I can offer any advice or further ideas and will keep it quiet. I've never tried to make a dime from my own site thus far (my gift to the cycling world) and certainly don't need to borrow ideas from someone else. I have too many as it is. :)