Karma System Bug? oder Hidden System here?

Hey,
I farmed at Marie Cave and killed the griefers now I'm marked as a red player without having minus karma, how is this possible?
Is that a bug after the update? or a hidden game mechanic?

 

Please take note of which sub-section you are posting threads, since I can see the screenshot I know that it is GamezBD, which means that this should be in the GamezBD section. Also, it would be very useful if you first make a search for the topic you want to post, just in case there are other threads about it, so that you do not make multiple threads about the same topic.

So, to answer your question, which I shouldn't do until it is posted in the correct section, but anyways; Now the Marie Cave is an area that is outside "standard" PvP rules. Or at least that is what I have heard, since it is one of the few places in the game-world, where you can attack other players ion the season channel.