As others have said, I don't think the minimum 2 diff rule should be gone. As the proposal stands now, I could map a 1 min Normal and get it ranked. You could say that the proposal mentions that maps require a proper spread (and you can't have spread with only 1 element), but an explicit mention of this minimum number of diffs required would be good.I agree. There should always be at least 2 diffs unless its a marathon. Thats what differentiates a marathon from a normal set.