<p>As stated by whuber the OP in <a href="https://stats.stackexchange.com/questions/207354/systematic-component-of-variation?noredirect=1#comment479849_207354">Systematic Component of Variation</a> probably mis-remembered the date of posting, as he admit in one comment under the same question:</p>

<blockquote>
  <p>Maybe I was wrong.</p>
</blockquote>

<p>It is ok to ask a question based on an OP's impression, but usually a bug would be something reproducible, able to collect evidence (e.g.: steps to reproduce the problem, screenshots, different users reporting same problem on different SE sites, etc).</p>
