I run WordPress on many of my sites and a site crawl has found MANY duplicate content pages on the latest domain I started a campaign for.
I expected to see quite a lot on the tag pages that only had one post but even tag pages with multiple posts and author and category pages with many posts are showing as duplicate content. Is this normal for a WordPress site to have so much duplicate content warnings from the taxonomy pages?
I have the option to bulk noindex, follow the category and tag pages but should I do it? I get some traffic directly to the tag pages so removing the pages from search results would dent the traffic of the site a little (generally high bounce rate, low engagement traffic anyway) but could removing the apparent duplicate content actually improve the article pages themselves?
Or does anyone have any WordPress specific advice for making the pages not duplicate content? I've toyed with the idea of just displaying excerpts but creating manual excerpts for the 4 years worth of posts, some of which I have no personal knowledge of the subject matter so other suggestions are welcome.