Yes, I think it has happened in Manitoba over the last two general elections. According to the experts in and around Elections Manitoba and me as a commentator, I have not encountered any problems with it. There are alternatives to vouching, but I think there are sufficient safeguards, protections, built into the vouching process that there isn't the likelihood of widespread fraud. I hear the message from the proponents of Bill C-23 now saying it's the potential for fraud. If you're balancing the potential for fraud and ensuring people the greatest amount of access to the vote, I would think that vouching would still be satisfactory and acceptable to most Canadians.
On March 31st, 2014. See this statement in context.