title: Hide text from user with jQuery in userscript
body: <p>How can i block/hide the user <strong>dbs</strong> all posts? With a userscript?</p>
  
  <pre><code> &lt;article class="container"&gt;
    &lt;div class="messages" id="messages"&gt;
     &lt;div class="message info"&gt;
      &lt;span class="nick"&gt;
       &lt;a title="2016-01-27 16:27:48"&gt;
        *
       &lt;/a&gt;
      &lt;/span&gt;
     &lt;pre class="text"&gt;Users online: Hej&lt;/pre&gt; 
    &lt;/div&gt;
    &lt;div class="message info"&gt;
     &lt;span class="nick"&gt;
      &lt;a title="2016-01-27 16:27:58"&gt;
       *
      &lt;/a&gt;
     &lt;/span&gt;
     &lt;pre class="text"&gt;dbs joined&lt;/pre&gt;
    &lt;/div&gt;
    &lt;div class="message"&gt;
     &lt;span class="nick"&gt;
      &lt;a title="2016-01-27 16:24:55"&gt;
       dbs
      &lt;/a&gt;
     &lt;/span&gt;
     &lt;pre class="text"&gt;Hej&lt;/pre&gt;
    &lt;/div&gt;
   &lt;/div&gt;
  &lt;/article&gt;
  </code></pre>
  
  <p>I know that if dbs change nick i get the message again..</p>
  
  <p>site is <a href="https://hack.chat/?lil" rel="nofollow">https://hack.chat/?lil</a> and lil is the room..</p>
  
  <p><strong>EDIT:</strong></p>
  
  <p>My plan was something like this</p>
  
  <pre><code>// ==UserScript==
  // @name        HackChat
  // @namespace   some
  // @description Hide unwanted user.
  // @include     https://hack.chat/*
  // @require     https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js
  // @version     1.0
  // @grant       GM_getValue
  // @grant       GM_setValue
  // @grant       GM_addStyle
  // ==/UserScript==
  
  /*--- waitForKeyElements():  A utility function, for Greasemonkey scripts,
  that detects and handles AJAXed content.
  
  Usage example:
  
      waitForKeyElements (
          "div.comments"
          , commentCallbackFunction
      );
  
      //--- Page-specific function to do what we want when the node is found.
      function commentCallbackFunction (jNode) {
          jNode.text ("This comment changed by waitForKeyElements().");
      }
  
  IMPORTANT: This function requires your script to have loaded jQuery.
  */
  var hiddenNick = $("article.container............").has ("dbs");
  
  hiddenNick.hide ();
  </code></pre>