This may be complicated, but I thought it would be a good idea to have a way to know, for a specific language, what subs may be missing for a specific series.
Right now, for example, I see there are dozens of subs missing from current series for past seasons, especially in english and spanish.
I may have some of these, but the only easy way to know so would be running the hashing on my videos and seeing the results. I have no other way of knowing if my subs haven been uploaded otherwise.
I may be oversimplifying things a little (no doubt there, as it seems there is no standard for naming series, and everything is done through the hash) but I thought it would be neat.
That and fixing the ratings, which right now suffer from serious deviations from one expects.