tag="rel" should not be used in the tag cloud, since those tags do not describe the current page
|Reported by:||DanielStutzbach||Owned by:||westi|
Links to tags tags that describe the current page can be marked with rel="tag", to give search engines an extra clue about what the current page is about. The tags in the tag cloud should not be marked with rel="tag", since they do not necessarily describe the current page (effectively diluting the usefulness of the information).
Quoting the HTML 5 spec:
"Since it indicates that the tag applies to the current document, it would be inappropriate to use this keyword in the markup of a tag cloud, which lists the popular tag across a set of pages"
Also see the older microformat spec:
Removing the rel="tag" from the tag cloud is a straightforward two-line change in wp_generate_tag_cloud() in category-template.php.