To me, it is crucial to get people on board who are used to paying to get attention, so advertisers/companies or market researchers (the guys paying just to get an opinion on a product). After the whole discussion here it seems so obvious to me, that I actually have a hard time imagining Ned and Dan not being aware of this and maybe (as I repeatedly said), I'm just impatient.
One thing I would like if I was a company with a marketing budget is the atmosphere here. You could get valuable feedback, because people here are much less inclined to trolling and flaming, but tend to be very constructive. So if I was some beer manufacturer and I had a new brand to introduce, I might buy some power to reward customer feedback. The reality check would be to see if people start just giving positive reviews because they hope for rewards, but the company could steer that rewarding constructive critique.