> the downvote isn't an "I disagree" button Would that it were so. HN has a down/up pair, which is definitely used to express agreement and disagreement. IMO,

> the downvote isn't an "I disagree" button Would that it were so. HN has a down/up pair, which is definitely used to express agreement and disagreement. IMO, HN would gain a lot by allowing for more flexibility in down votes - eg. being like SO that a downvote is only a quarter of a vote.