I think what we're seeing a few hours later is the success of the polling feature - the poll on gender has (at the time of writing this) 155 votes, but only 8 p

I think what we're seeing a few hours later is the success of the polling feature - the poll on gender has (at the time of writing this) 155 votes, but only 8 points - it has barely stayed on the front page. So while a poll doesn't add a huge amount to the community, the way people upvote polls reflects this if and only if the polling is separate from the frontpage upvote.