[Retric]

There are over 700,000 HP hp fanfiction works out there chances are most people who liked the series could find 10 that they liked without reading most of them. Traditional publishing's has kept a lid on things easily stopping the bottom 95%, but there are plenty of terrible books out there so you still need a way to find the good ones.

Minimally biased raiting systems seem like an effective way to seperate the dreck. Yet, paid content has huge incentives to game the system, but with unpaid content that's far less of an issue.