Actually, stats fall off after 21 days. You kill someone with a rocket, in 22 days that kill will not be registered in your weapon stats. It will record the kill, but the number added to your rocket count has an expiration date. In that way, your numbers fluctuate a lot. You have a good day, and three weeks later it looks like your kills too a dive.
But for me, I just think they're fun to get. I could care less about KDR, rank, etc. I just like looking at my totals and getting the awards. Everybody needs something to play for, right?
Oh, and Masa?
2008-07-04 Rocket Deflector 3 rockets deflected.
2008-07-04 Pipe Deflector 2 pipes deflected.
2008-07-04 Axtinguisher 35 kills with axtinguisher.
2008-07-04 Follower of the Axe 35 kills with fireaxe.
