Personally, I agree with the earlier post that said the ratings weren't really helpful, in as much as you have no way of knowing why a skin got the rating it did. The whole thing seems like more of a popularity contest than an evaluation on style, technique, artistry, etc.
Although it sounds like it will never happen, at least in the forseeable future, it would be nice to have feedback from a selected # of advanced skinners on every skin. Several years ago, I was a member of an online poetry club and every work you submitted was evaluated by at least 4 other members on style, form, etc. This enabled the writer to improve with real advice and comments from other writers, not just "cool poem". I have only been making skins for a couple of months or so, but I'm not sure if I've ever had any helpful comment from any other skinners. I think the comments I've gotten have been mostly from ppl that come here to download but wouldn't know where to start in evaluating a skin on it merits.
As I said, it probably won't happen but maybe some skinners, especially new ones like me, yearn for help, advice and so forth and the ratings just don't get it done.
ok, that's my 2 cents