anchor.diff:      callApi(Future.wait([openIssues, closedIssues]).then((values) {
         int open = values[0];
         int closed = values[1];
  -      // TODO: Figure out better score measure
  -      int issueScore = min((log(open + closed)).round(), 6);
  -      criterion.add(new ScoreCriteria('Issues', '$open open, $closed closed', issueScore, 6));
  +
  +      int ratioScore = closed > 0 ? getScore(open / closed, [0.3, 0.15], descending: true) : 0;
  +      int issueScore = getScore(open + closed, [1, 5, 15, 50]);
  +      int totalScore = ratioScore > 0 ? issueScore + ((issueScore / 4) * ratioScore).round() : issueScore;
  +
  +      criterion.add(new ScoreCriteria('Issues', '$open open, $closed closed', totalScore, 6));
       }));
  +  }
  +
  +  int getScore(num value, List steps, {bool descending: false}) {
  +    int score = 0;
  +
  +    if(descending) {
  +      while(score < steps.length && value <= steps[score]) {
  +        score++;
  +      }
  +    } else {
  +      while(score < steps.length && value >= steps[score]) {
  +        score++;
  +      }
  +    }
  +
  +    return score;
     }
   
     callApi(Future api) {
  
positive.code:     callApi(Future.wait([openPR, closedPR]).then((values) {
        int open = values[0];
        int closed = values[1];
        // TODO: Figure out better score measure
        int prScore = min((log(open + closed)).round(), 8);
        criterion.add(new ScoreCriteria('Pull Requests', '$open open, $closed closed', prScore, 8));
      }));
  
      callApi(getCount('$githubUrl/repos/$shortRepo/contributors?per_page=1').then((count) {
  
negative.code: 
      // Rank README file
      callApi(github.readme(repoSlug).then((file) {
        var scoreMap = {1: 'Tiny', 500: 'Short', 1800: 'Long'};
        var keys = scoreMap.keys.toList();
        int score = getScore(file.size, keys);
        criterion.add(new ScoreCriteria('Readme', scoreMap[keys[score-1]], score, 3));
      })
      .catchError((e) {
        criterion.add(new ScoreCriteria('Readme', 'None', 0, 3));
      }, test: (e) => e is NotFound));
  
      var openPR = getCount('$githubUrl/repos/$shortRepo/pulls?state=open&per_page=1');
  