I think the categories need tidying up in general. There are huge amounts of entries in some but others only have a few entries. All categories should attract a similar amount of entries and those categories that have large entries should be sub divided. Small categories could be incorporated together to make a uniform sized categories. I still see a huge diversity of styles appearing in the wrong categories.
I have entered songs in cover bands. I still see a lot of what appears to be original songs in that category. Perhaps cause it is relatively small in compariosn to others and people think they have a better chance entering in the smaller categories.
I still think some form of pre judging should take place to ensure quality and suitability for the category entered. Perhaps there should be a category for people who just want to post songs without them being entered into a competition would be the place for rejected songs.

http://www.soundclick.com/bands/songInfo.cfm?bandID=687727&songID=5238055