[dspillett]

I wouldn't say that was unfair. Ability in the right areas, demonstrated first hand, is a perfectly valid filter and the ranking you give it with your scoring system seems fine to me (unless the difference between the low and high ends is dependent on how much you like them!).

Yes you might lose someone who could be a star, but no system is perfect.

Hiring someone just because you know them is simply wrong, but giving them a chance because they've shown you an aptitude relevant to the position should not be seen as unfair IMO.