When voting on an idea there may be subsequent discussion which actually makes someone want to change their vote (UP +5 to vote down -5 which can be done by using the down arrow) or indeed they may want to pull out of a vote altogether (+5 to 0). If the latter is true i dont see a way to 'un-vote' on an idea... Any thoughts?
I'm interested in the answer to this question too. If we made a mistake and voted for the wrong choice, how can we undo an Up vote (un-vote) ? Currently the only way to undo is to Down vote.
Also is it possible to vote anonymously? If probably makes users hesitant to vote down if everyone can see what they did.