<p>I'm also a bit confused because we're talking about changeset comments here, but the example you gave is all about notes?</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br>Reply to this email directly or <a href="https://github.com/openstreetmap/openstreetmap-website/issues/846#issuecomment-64829737">view it on GitHub</a>.<img alt="" height="1" src="https://github.com/notifications/beacon/ABWnLUrC8qZPqym_jItaZmki1d9arARtks5nR4e2gaJpZM4DAuSg.gif" width="1" /></p>
<div itemscope itemtype="http://schema.org/EmailMessage">
  <div itemprop="action" itemscope itemtype="http://schema.org/ViewAction">
    <link itemprop="url" href="https://github.com/openstreetmap/openstreetmap-website/issues/846#issuecomment-64829737"></link>
    <meta itemprop="name" content="View Issue"></meta>
  </div>
  <meta itemprop="description" content="View this Issue on GitHub"></meta>
</div>