I would like the idea. but a) to record of EVERY kill and cooresponding death ever made? that would take a lottttt of memory to have a separate counter for EVERY person youve killed/been killed by; b) It would be inaccurate because it would only info from the implentation date forward, this info hasnt been recorded in the past.
and besides, if the player on top of youre list you have killed significantly more times than #2, wouldnt that be a sign of boosting?..