filter_with_comment.user.js

// ==UserScript==
// @name        filter_with_comment
// @namespace   www.rezic.de
// @include     http://analysis.cpantesters.org/beforemaintrelease*
// @version     1
// @grant       none
// ==/UserScript==
var filtered = false;
var t = document.getElementById("beforemaintrelease_main");
if (!t) {
  alert("Cannot find main table")
} else {
  var btn = document.createElement("button");
  btn.innerHTML = 'Hide with comments';
  btn.onclick = function() {
    console.debug("clicked");
    var trNodes = t.getElementsByTagName("tr");
    console.debug("found " + trNodes.length + " tr nodes");
    if (!filtered) {
      console.debug("currently not filtered");
      for(var i = 0; i < trNodes.length; i++) {
        var trNode = trNodes[i];
        var tdNodes = trNode.getElementsByTagName("td");
        if (tdNodes[3] && tdNodes[3].innerHTML.match(/\w/)) {
          trNode.style.visibility = 'collapse';
          console.debug("collapse node");
        }
      }
    } else {
      for(var i = 0; i < trNodes.length; i++) {
        var trNode = trNodes[i];
        trNode.style.visibility = 'visible';
      }
    }
    filtered = !filtered;
    if (filtered) {
      btn.innerHTML = 'Show with comments';
    } else {
      btn.innerHTML = 'Hide with comments';      
    }
  }
  t.parentNode.insertBefore(btn, t);
}

This is a greasemonkey script which provides a button to hide/show rows on the beforemaintrelease page without a comment entry. Useful to find CPAN distributions which are possible regression candidates and don't have already a bug report or another comment.