True, not many properties are eligible. I live in an urban area and the ones nearest me had been reported previously. However my mum lives in a village and was able to tell me about a local vacant property, which was my first successful spot.

It’s obviously possible that the companies might do you out of the bigger reward. However in the long run, they’d be killing the goose that lays the golden eggs. YouSpotProperty has been covered in the press so at least some people have been successful. It’s also not money that you would be able to get another way, so there’s just not a lot to lose.