You know how there's people that say they're better, except they aren't? Why not make a score system that proves that?
I made a little something to rate someone by their (K)ills, (D)eaths, and (a)ssists.
S>30 (You're awesome.)
20<S<30 (You played a great match.)
10<S<20 (You did your fair share.)
0<S<10 (That was not your match.)
S<0 (You fed.)
This is structured so:
You won't be penalized for killing an enemy inside their turret.
Tanks and Support characters can also have a good score.
People can find out who was feeding the enemy team, regardless of their kills/assists.