Interesting idea, but it seems ultimately like a high-tech implementation of a low-tech process-- really I'm just relying on the 'supervisor' to hold me accountable, and if I get to the point of asking someone else to hold me accountable to a deadline I've already accomplished the hard part, anyway. Sharing goals is a proven strong motivator in itself, I think.<p>It did bring to mind an interesting related idea, though, specifically for software side projects: instead of relying on a human to validate your success, create a smart contract around a test suite; funds are released by passing your tests by the deadline.