gistfile1.txt

// ==UserScript==
// @name        CensoringAlert
// @namespace   konfu1
// @include     http://comment-cdn.9gag.com/*
// @version     1
// @grant       GM_addStyle
// @require     http://code.jquery.com/jquery-2.1.4.min.js
// ==/UserScript==


(function ($, undefined) {
  function matches(regexp) {
    return function (str) {
      return regexp.test(str);
    };
  }
  
  function any() {
    var args = arguments;
    return function (str) {
      for (var i = 0; i < args.length; ++i) {
        if (args[i](str))
          return true;
      }
      return false;
    };
  }
  
  var isBlocked = any(
    //matches(/c[o|0]m/),    // produce lots of false-positives. need more testing
    matches(/4ch[a|4]n/),
    //matches(/9g[a|4]g/),    // produce lots of false-positives. need more testing
    matches(/[a|4]dm[i|l]?n/),
    matches(/b[o|0]t/),
    matches(/buzzf[e|3][e|3]d/),
    matches(/funnyjunk/),
    matches(/h[o|0]t[o|0]n[i|l]?nt[e|3]rn[e|3]t/),
    matches(/[i|l]?mgur/),
    matches(/m[e|3]m[e|3]c[e|3]nt[e|3]r/),
    matches(/r[e|3]dd[i|l]?t/),
    matches(/r[e|3]p[o|0]st/),
    matches(/st[o|0][l|i][e|3]n/),
    matches(/tr[e|3]nd[i|l]?ng/),
    matches(/tumb[l|i]r/),
    matches(/www/)
  );
  
  function run() {
    $('.comment-entry').each(function (index, element) {
      var $element = $(element);
      var text = $element.find('.content').text();
      text = text.replace(/\W/g, '');
      text = text.toLowerCase();
      if (isBlocked(text))
        $element.addClass('forbidden-comment');
    });
  }


  console.log('9gag CensoringAlert loaded');
  GM_addStyle('.forbidden-comment {border: 3px solid red;}');
  setInterval(run, 2000);

})(jQuery.noConflict());