If you have 100 Karma cause you're an RDMing fag,
and you're a T,
you'll most likely just get a single kill, from a knife.
If you get 10+ Karma for each kill,
and 30 Karma by default at the end of the round,
It'd just be 40+ Karma to the RDMing fag.
But if you're someone like me or Jman,
and have, say, 800 Karma,
accidentally SHOOT a Inno, misfire, bad aim, whatever,
Loose 200 Karma.
600 Karma = 40-30% Dmg reduction,
We kill 4 Inno's total,
40+ Karma for kills
30 + Karma for round end
70+ Total karma,
giving is 50% recovery from a mistake.