For those who aren't authors, you might be surprised how your vote affects a story's rating. If you want to know how the voting works, read this
From what I've seen, when someone votes an 8, the scaling reduces it to 6.6 - 6.8. That number fluctuates on what others have voted on other stories in the past 12 hours, but it's been within that range for three books when the first vote was an 8.
Now, if you vote a 10, the value used in the average score is 10, not a scaled value. That makes 10s far more powerful than a 9 or 8.
I find the scaling very misleading. When I vote an 8 on a story that was already an 8, the last thing I would expect would be for it to reduce the score. Obviously, the more votes, the less each individual vote matters, but I've seen each of my books slowly climb up into the 7s, then one person votes a 7 or 6 and tanks the score back into the 6s. That ain't right.
I'm not suggesting to change the rules, however. It's far too late for that. I just think people should know how it actually works.