QUOTE(Aevin @ Apr 3 2013, 12:23 PM)
I do think it's a little frustrating how virtually any system except the existing one disadvantages newer quests. The longer it's been here, the more people play it, so with two quests of equal strength, the one that's here the longest will still be rated higher. It's quite a hill for newcomers to climb, but I guess there's nothing for it.
In one sense you are correct, but you don't acknowledge the opposite side of the story. Newbies will tend to release lower-rated quests at first. If their average rating is below a 3 (with our implementation), then the Bayesian average actually helps them out in the short term, and the more ratings the quest gets, the lower the score will be.
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It sucks that, as is about to happen to my quest, a 4.5 shows up as a five star, but once it drops down to 4.49, it becomes a 4 star. If it drops .01, it appears to drop a full star all at once. A percentage system would allow for more accurate comparisons and require a little more thought.
This is true in the graphical sense, but you can always hover over your star rating to see the extended decimal. Not a full replacement, I know.
QUOTE(Koh @ Apr 3 2013, 12:41 PM)
As for the Bayesian average, the problem is something can never be 5/5 (or 10/10) or 0/5 (or 0/10) because of that random 3 (or 5) rating.
It's true that you can never reach exactly 5 stars or 0 stars with a finite number of ratings, but I don't see it as a problem. It has the nice property that if two quests get exclusively 5-star ratings, the one with more 5-star ratings will be ranked higher. Inversely, if two quests get exclusively 0-star ratings, then the one with more 0-star ratings will be ranked lower. (The interesting case is, when a quest has an average review of 3 stars it will absolutely always have exactly a 3-star rating as well.)