I think the Kills and Deaths feature makes at the current point in time not much sense, as one, in my opinion(other opinions allowed :D) would want to see a player's Kills/Deaths during the whole match and not the kills/deaths that person earned since I joined the server.
This leads to, I guess, some confusion when people might talk about K/D.
If there are 16 players on a server, it's most likely that everyone sees a different K/D for most of the other players, especially the K/D of some ...