This is awesome! My first startup was a kickstarter competitor (enjyn.com) and something like this is one of the big things I wanted to do for code!

My tentative plan was not to just make it for coders though, and to break things down, so one task is to write unit/accceptance tests for a portion of the bounty (maybe configurable, maybe 20 or 30%? dunno) and once the bounty for the tests was accepted, any code that passes those tests automatically gets the remainder of the bounty... if Gun.io can benefit from this idea, my blessings to you!