<p>Here is a copy the private message from the moderator that was sent after my post to the meta.</p>

<blockquote>
  <p>Hello,</p>
  
  <p>I'm writing in reference to your Statistical Analysis - Stack Exchange account:</p>
  
  <p><a href="https://stats.stackexchange.com/users/3911/gaborgulya">https://stats.stackexchange.com/users/3911/gaborgulya</a></p>
  
  <p>It seems you have added a tag "analytical-derivation" to many questions. As you can see, this tag has been wiped out. There are two reasons why we did that:</p>
  
  <ul>
  <li>This tag was a meta tag, and as such it was not making Internet a better place; this blog post explains it in detail: <a href="http://blog.stackoverflow.com/2010/08/the-death-of-meta-tags/">http://blog.stackoverflow.com/2010/08/the-death-of-meta-tags/</a></li>
  <li>SE is a collaborative site, and the organic growth of a tag is the only way to ensure that it is wanted and needed.</li>
  </ul>
  
  <p>For the future, if you think that some global editing action is required, propose it earlier as a meta thread.</p>
  
  <p>Regards,
  XXXX
  Statistical Analysis - Stack Exchange moderator</p>
</blockquote>

<p>I'm not sure the moderator wants to identify themselves so I substituted the name with XXXX.</p>
