With the structure of WordPress when multiple tags are selected, SEOMoz reports show each URL/tag as duplicated content? What to do?

[VividImage]

wordpress.com/blogpost/tag/word1

wordpress.com/blogpost/tag/word 2

etc.

Same page, but WP generates multiple URLs for each tag. in reports, this shows as duplicate content. Is it something to worry about? If yes, what is the best fix?

[KyleChamp]

Yeah, CMS like wordpress likes to create pages for the same page.

Fix: Add the  rel="canonical" tag into the section of the main page you created. This will tell Google that this page if the original and the rest are copies. That will fix your duplicate content issue.

Example:

You can read more on the rel=”canonical” tag here http://support.google.com/webmasters/bin/answer.py?hl=en&answer=139394

[SEODinosaur]

It's best practice to disallow tags from indexation. Check out this blog post (it is based on using Yoast for WP, however the rules still apply)

http://www.seomoz.org/blog/setup-wordpress-for-seo-success  (Indexation section of article)