"The attraction of a large kitty might be enough to attract the right sort of thinkers to the problem. :)"
This is an excellent example of problem solving =)
Doesn't Utopian.io have a bounty system somewhat like this?
I haven't essayed the learning curve yet to find out what Utopian is all about, so have but hazy and dim recollections of off hand comments I've seen about it to go by.