I think voters were clueless about both candidates, but they like to fill in all the boxes on the ballot, so they chose the name that has the higher positive affect by far: "Alvin Greene".
To me that would be sufficient to explain the entire anomaly, if not for the mysterious origin of Greene's $10,000 filing fee.
Also the possible "Al Green" effect -- voters may have thought they were voting for the famous soul singer.
This thread is for the discussion of Less Wrong topics that have not appeared in recent posts. If a discussion gets unwieldy, celebrate by turning it into a top-level post.
This thread brought to you by quantum immortality.