<span class="dsq-postid" rel="1249 http://site.com/?p=1249">7</span>
It appears that Disqus adds this code to the comment counts aka anything produced by
<?php comments_number('0', '1', '%'); ?>
The errors are:
Attribute rel not allowed on element span at this point.
RDFa Core attribute rel is not allowed on the span element in HTML5 + RDFa 1.1 Lite documents. Consider checking against the HTML5 + RDFa 1.1 schema instead.
What's up with that?