I am finding for a few WP MNS sites, the tag pages are being ranked way higher than the actual post or category pages. Even for tags for Keywords that are not the main KW of the article. Is this bad? Am I doing something wrong. It's not like I build BLs or promote the tag pages. And some people say having Tag pages is like having duplicate content, but isn't that the same with category pages, and you can't avoid this anyways, unless you don't use any tags ... Advice please!