This is why K/D isn't so great - kills with TNT, lava or pit traps just don't count, though they are generally the most fun kills :P
Anyway, it's just a number I wish I could compare. Actually I think a good way to score how "good" one is at winning would have been:
Score =
(-1 for every personal death +(no. of starting players) for every win) / total-games-played.
Which would account for preferences in number of players and map size...eh, given what scores *are* tracked though I just wanted to see if I was a good player or not.
(n.b. I was 4.6 on the month, compared to 5.8 overall, so I guess I'm improving?)