Startup Idea : Platform to help finish your project

I'm thinking about creating a website where people would add projects which they want to create (alone or involving cofounders), they would share how they create features step by step through development, how much is done, business model etc.. They could have feedback from other people while developing the app and stay supported and motivated along the way to finish the project. It could be ones'blog creation, new social network, fixing car etc. Just think of it as a kickstarter without funding, even for smaller project. Just see what others do and show others what you do, partner up and finish what you started. What do you think?