With respect to the quality of the torrent, there is one thing that I see coming into play here. A lot of our users don't seem to necessarily understand the difference in the quality of the torrent (e.g. video compression, frame size, frame rate, sound quality, etc) versus whether or not the content of the torrent is appealing to them personally. This in and of itself creates the potential for a flawed rating system just for the simple fact that there are a number of users who will give a torrent a bad rating simply because the content of the torrent doesn't appeal to them, rather than rating it based on the actual quality and technical standards of the torrent.
Perhaps this point is something that also needs to be addressed when taking the whole rating system into account. For example, if I were to rate torrents based on their personal appeal to me, all torrents from censored for example would receive a rather low rating, whereas a torrent that for example may be a VHS rip (with obvious lower quality) may receive a higher rating based on its content. Where exactly does one draw the line with respect to the rating system?
As well, the other thing to take into account when rating a torrent is the file format. A flash video file (.flv) generally would tend to have a lower overall quality (especially if ripped from a tube site such as XTube) than a torrent that is either in DVD-R format (.iso or .vob) or was converted directly to a video file such as a less compressed AVI file or a better compressed MPEG video for example. Perhaps if this rating system is left to moderators, a definitive answer with respect to the technical standards needs to be set. If the rating system that is currently in place remains in effect, this is something for all users to take into account when rating a torrent for its quality.
Just my two cents on the topic of the rating system.