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If people could do this conciously, we wouldn’t need this article.
I think the author is just asking us to vote more thoughtfully. Currently, especially on sites like Reddit, the upvote/downvote buttons are abused as agree/disagree buttons and are clicked with little thought. The recent troubles on Reddit have people talking about alternatives. An old site - one of the first voting based forums - was brought up, Slashdot. It has an interesting voting system. Only some people can vot…
One day you would get on the site, and have 5 votes to spend. If you didn't spend them, they would go away and it would take a little longer to get more next time.
It was a really interesting system. People did act a bit more seriously when they had votes, and there was the metamoderation system for keeping them accountable. It was a little bit complex, but only long-term users would see it, and worked better than any other system I have seen on practice.