title: Can valid XML contain a singular sharp-brace-enclosed word
body: <p>Is it valid XML to have a single word in sharp braces?</p>
  
  <pre><code>&lt;data&gt;
      &lt;message param1="sth"&gt;
           Here is text concernthing data (&lt;Pass&gt;#150)
      &lt;/message&gt;
  &lt;/data&gt;
  </code></pre>
  
  <p>XML validator says it is invalide, but there are no other nodes between <code>&lt;message&gt;</code> and <code>&lt;/message&gt;</code> and the beautifier I have seems to work easily with it. Is it just not strict "good practice" but in some way workable?</p>