That is an incredibly bad idea. The people who would use this value the data and are willing to pay a lot of money for it. Secondly they are not going to be doing many searches. The Google search monitization strategy will not work. This guys have the right idea, copy the way BuiltWith.com makes money.
I don't know, there was a lot of griping about the credits in the previous NerdyData threads on HN, and HNers are their target market.
I think having the service free, or providing 90 day free trials, would help their adoption significantly at this stage in the game.
I know Patio11 would disagree, but I think trying to monetize at this stage is unwise.
Just to be clear, I'm not really suggesting that they're going to make serious money with adsense. Maybe they could cover their hosting for the time being, though.
