what is karma good for?
Karma is used to determine who moderates and who doesn’t. Extremely bad karma usually indicates a user account that is being used to spam the discussion board. Secondly, users with better karma are given a bonus point which can sometimes increase your karma level. Logged-in users normally post comments with a score of 1, but the theory is that if a user earns higher karma, they may post with a score of 2. Essentially it’s a reward for being a good participant on Slashdot, or a punishment for being a bad one. Users with very low karma might lose the +1 associated with being a logged-in user. Extremely bad users might even be penalized to a -1.