I think this is missing the second part. There were two lines:

```
// Extract any math out of the comment (prefer HTML version of body)
         var body   = (comment.body_html ? comment.body_html : comment.body);
         // match any vote numbers at start of line or with whitespace ahead of them
         // then strip out any non-number parts
         var counts = _getCleanComment(body).match(/(?:[>\s]|^)([-+][0-9]+)/gm);
         counts = _.map(counts, function(s) { return s.match(/[+-][0-9]+/)[0]; });
         // - convert the string counts into numbers
         counts = _.map(counts, function(numStr) {return parseInt(numStr, 10);});
         // - Run the math for the comment (this is silly but allows people to
         //   have various pluses in their comment).
```