This is a very interesting point, and to repeat what I said in Discord, in the very last version of my APB stats system I removed deaths and the k/d ratio for this very reason. They were still recorded but not publicly visible, this led to more players changing their styles of play (not all, granted). I replaced this with a win ratio leading to people wanting to work to destroy the enemy base, not spend the whole game as an APC running people over (same thing, different game).