Also, if the RDMing traitor with shit karma has reduced damage of 95%, how will they kill enough inno's to make a significant recovery of karma?
That's the fucking point.
RDMer's who go from a good 900 to 100 can't take advantage of this. At most, they'll get a single knife kill.
The point is for decent players who make a single mistake, like shooting an inno in the crossfire, and such, and loose, say, 100-200 karma.