Hmmm, no me aparece. Mi wordpress genera:
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<img alt="Avatar for Skye" src="https://forum.example.com/user_avatar/forum.example.com/skye/64/3_2.png" class="avatar avatar-64 photo avatar-default" height="64" width="64">
<b class="fn"><a href="https://forum.example.com/t/test-post-for-discourse/57" rel="external" class="url">Skye</a></b>
<span class="says screen-reader-text">dice:</span><!-- screen reader text -->
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<time datetime=""></time>
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<div class="comment-content"><p>Comentario de prueba. Este es un comentario de prueba con <strong>texto en negrita</strong>.</p></div>
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(Sin .staff)