It&#x27;s because of the experiment I described here: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10537417" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10537417</a>.<p>Not sure what to do about this. I suppose we can make the older comments keep their original timestamps and just be older than the timestamp at the top. That already happens when we merge threads anyway.