it's tied to both. to gain visibilty, need to vote "good argument, but i disagree" or "bad argument, but i agree with the conclusion" a naked 'good argument'

it's tied to both. to gain visibilty, need to vote "good argument, but i disagree" or "bad argument, but i agree with the conclusion" a naked 'good argument' or 'i agree vote' costs a small amount of karma. a 'i agree, good argument', costs a large amount of karma, because those votes should be rare.