Well considering him voting at +100%, then 0%, then -56% would have been done something to his VP like the following:

VP * 0.98 * 0.98 * 0.9888

As undoing a vote actually uses SP as well, so because of that I would say why tell him "keep undoing your votes" 😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂