What I mean is I do not need to downvote nor comment if I believe it is not worth it. I would suggest limits on the number of karma points we can use each week

What I mean is I do not need to downvote nor comment if I believe it is not worth it. I would suggest limits on the number of karma points we can use each week or day (with no rollover) and eliminate the downvote feature. In the case a comment or story is inappropriate, it can be flagged.