Another option... make karma be worth nothing tangible whatsoever. Make people have to go out of their way to see how much karma another member has. Oh wait...

Another option... make karma be worth nothing tangible whatsoever. Make people have to go out of their way to see how much karma another member has. Oh wait... that's all covered. Karma is stupid, and nobody really cares except for when these dumb posts come up a couple times a month.