I'm trying to remove the trolls at will.  I've used this code on many different sites with no problem.  I suspect it has something to do with the funky way Kickstarter is loading the comments.  I'm using User Scripts with Firefox.

1.     // ==UserScript==
       // @name        Kickstarter
       // @namespace   https://www.kickstarter.com/*
       // @include     https://www.kickstarter.com/*
       // @version     1
       // @grant       none
       // @require     https://code.jquery.com/jquery-1.10.2.js
       // ==/UserScript==
2. 
       (function() {
           'use strict';
3.         $("span").filter(":contains('advmal')").closest("li").remove();
4.     })();

*I don't have a problem with this specific person, this is just a good example because he has a lot of posts on the page.

http://jsfiddle.net/dfan7vus/

As you can see if I cut and paste the HTML from Kickstarter and put it in a JQuery analyzer the code works fine.  Can anyone help me on how to run this and apply it to the comments section after the page is fully loaded?  Many thanks!