I think the only time a 5-number rating system works is when it is under judgment, or extremely close to the value. Voting something 5 or 0 will increase your voting power more than what you think it deserves. I vote things I believe should have a higher rating 5, and things I believe should have a lower rating 0, just to further influence my vote. Even if I believe something deserves a 4, and has a rating of 4.1, voting 0 will change it more than voting 4. I thought the staff would just replace the voting system with a thumbs up and down button, and from that a 5-number rating can still be derived by averaging the votes.