Heres the deal, Some innocent decides to guess your the traitor but begins shooting at you, but you just happen to kill him first and he only damaged you by 20 hp. You check his body and he is innocent. GOD DAMNIT.
Next round, you had a perfect 1000 karma...now you have 650-830. I think that if an innocent attacks you FIRST, you should be immune to karma loss for about 1 minute. Like a few people who I wont name, they went on an rdming spree and somehow you loose like 400 karma for killing them AFTER THEY BLEW OFF YOUR WHOLE ENTIRE TEAM.
I think it can be usefull.