I hate to say, if you do nothing wrong, you have nothing to fear, but in a sense, it's kind of true. Especially in this type of circumstance. The guy may have made an accident, but I'm not really sure how you can accidentally vote twice. It's also not law enforcement, but a third party that's ostracizing someone for breaking a law, which to my thinking, is much more useful than fining, caging, or killing someone.

We also have to consider how much one vote is worth. Where either of the elections he voted for decided by one vote? Are they ever? And on top of that, this isn't some sort of ballot harvesting scheme that might actually change things.

My two cents.