Doubletime fully deserves his karma, acting like little mean kid right from the beginning of his worming career. This includes receiving fastest ban in NNNL history, faking players/drops, writing various bullshit, intentionally annoying everybody, etc etc etc. How can you defend this nasty worm when you know that all "good" that he does (oh yeah, modding the cup, such a big, titanic job) is actually done in purpose of yelling about it later, like "OH LOOK I'M BLOODY USEFUL, I'M GOOD TO COMMUNITY, PRAISE ME".
Now on topic - imho, karma should stay, but its changes must be publicly visible. As for now, you can continuously smite a person just because you don't like him, not for silly posts or bad behaviour. And you won't get punished for this, since all actions are hidden! This renders karma system partially useless.
Though, I'm not sure if karma should be reset after such change in the system or not. With that, I think that having possibility to reset karma each season is nonsense, since karma has nothing to do with your gaming or whatsoever, it is something global.