I don't understand avoiding spars. I've been #1 on the FB board all week, and the way I see it is that it's an even split in risk.
If I spar a good player and lose, I lose significantly less points. If I spar a terrible player and lose, I lose a ridiculous amount of points. Spars are six hits and anything can happen. My recent losses are also probably an even split between "good" sparrers and just random newbies who pop into the arena. Comyt, iHercules, Able, Roxas, and many others who have sparred actively this week will tell you I'm not shy to queue with 8600 points. You can't get up that high without sparring good sparrers, anyway. Sparring a newbie is literally 0-2 points for me at this level, with a risk of losing over 100 points. If you think too much and pick and choose who you're sparring, you're probably not confident anyway and are more likely to lose.
I'd support removing the leaderboards, doesn't matter to me. It doesn't achieve showing who is the best, because certain people have obviously abused it. We don't need to name names. Who seriously idles up an alternate account and intentionally loses spars just to use it to spar vs. players above them and try to tank their score?