So I don't see why Jury members can't join.[/b]
Because even if there is seperate catagories, there will still be only 1 winner, correct? Thats still incentive downrate maps since every map is one they will still be competing against in one way or another. It wouldnt have to be anything noticiable...all it would have to be was a slight downvote, even if its from a seven to a six or a nine to an eight, to make the difference in who a winner is in the end.
This is how I see it: "Joe" submits a map in the TD catagory thats worthy of 10 points. "Bill" submits a map in the AoS catagory thats also worth ten points. Both are evaluating eachother's maps because they are both judging different catagories. But if there is onyl 1 winner in the end, Joe might downvote Bill's map from 10 to a 9 (even thought its in another catagory) to make sure his 10 point map gets that extra 1 point lead in the end. Well, thats just the logic of how all this could go wrong. Not saying that it will actually happen that way...