Forum Post: A short Javascript to ignore user articles and comments

I got fed up with the postings and comments of certain users so I decided to write a short Javascript to ignore them. I run it with the GreaseMonkey extension for Firefox. If you're using another browser, you will need to find some way to run it after the page has finished loading.

After a page has loaded, all the postings and comments from the users in the ignore list will be hidden. The only "bug" at this time is that users that are loaded by Ajax after the main page load will not be ignored. This affects the bubbling page where only the first 30 or so postings will be filtered.

Freedom of speech is important, but the freedom to filter out what you don't want to read is also important.

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Upcoming features

I will be adding the ability to filter out comments and posts containing certain keywords of your choosing. I will do this in a few days and post the additions here. (I'm tired of reading the comments of users who can't write without using profanity.)

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Instructions

1. Setup the script with GreaseMonkey on Firefox, or on another browser using the appropriate plugin.
2. Make sure the script runs for all URLs that begin with http://occupywallst.org/forum/
3. Open the script, and edit the list of usernames to ignore.

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// ==UserScript==
// @name           occupywallst ignorer
// @namespace      occupywallst_ignorer
// @description    Ignores user comments and postings on occupywallstr.org
// @include        occupywallst.org/forum/*    
// ==/UserScript==

var ignore_list = [
    'someusername', 'anotherusername', 'yetanotherusername'
];

// *******************************************
// * Verifies if an object is in an array
// *
// * @param   mixed   obj
// * @return  bool    is in array
// *******************************************
Array.prototype.contains = function(obj)
{
    var i = this.length;

    while (i--)
    {
        if (this[i] === obj)
        {
            return true;
        }
    }

    return false;
}

// *******************************************
// * Hides an element
// *
// * @param   string  class
// * @return  void
// *******************************************
function hide(className)
{
    var e = document.getElementsByClassName(className);

    for (var i=0; i<e.length; i++)
    {
        var user = e[i].getElementsByClassName('user');
        user = user[0].innerHTML;

        if (ignore_list.contains(user))
        {
            e[i].style.display = 'none';
        }
    }
}

// *******************************************
// * Runs the script after the DOM is loaded
// *******************************************
window.addEventListener("load", function(e)
{

    hide('article');
    hide('recent-comment');
    hide('comment');

}, false);