I missed it the first time, so I went back to see what you were referring to.

Now I want my Kudos back.

When you hover over the Kudos button it says "Don't move" for 1 second, and then up-votes the article. There is no way to get the vote back (that I can see) and it takes about a second to read what on earth the thing you just mouseover'd is saying, which means your vote is cast before you know it.

For reference, the following code is the implementation I see :)

    function s(t) {
        t.addClass("active"),
        t.children(".counter").children("span.txt").html("Don’t move"),
        t.children(".counter").children("span.num").hide(),
        e = setTimeout(function() {
          clearTimeout(e), u(t)
        }, 1e3)
    }

[edit] added some linebreaks to the code