Binary Voting
How many reports have you had to fill up with a number of stars to choose? How much useless time is spent on figuring the this number just because it is always very ambiguous?Some blogger wrote an interesting entry on Why I Hate Five Stars Reviews. Basically he advocates binary voting instead via like/dislike. Maybe a ternary system via like/dislike/don't care would be ok too.
One coworker used to advocate the same for a similar reason: people reading those reports only pay attention to the extremes: the 5 stars or the 0 stars. So if you want to have a voice, you need to express it via 5 or 0, nothing in between.