Look as a nerd I hear "ill give you 1/2 if you build it"... we talk about their idea, then I say... Well the first step is for you to go put that on paper. Go build wireframes, put together a business plan (high level) look at the competitive landscape. Wire frame are easy and if you bring me a stack of bar napikins with doodles I will help you put them into something more formal.

I have never seen a wire frame, or a bar napkin, or a business plan or any sort of competitive analysis come back from one of these proposals.

Lets flip this on its head. I have an idea, and I'm doing all the coding/dev work. What are YOU going to do to add value to that endeavor? How much would that work be worth as a percentage?