JDC is for FUN. Ratios, winning, streaks...blah blah blah they have a system, and it seems to generate a score roughly aquanited to how much you play/ how well you do. Besides that, is it really a big deal. I mean, except for a few of the more hardcore participants, is there anyone playing specifically to win? I'm not, and in recent seasons of jdc ive done most of the people I play done care terrible much about winning it either, so even if the scoring is not perfect, it serves its purpose for the 95+% of JDC players who are in for the fun.

That's just my 2 bits on the topic