Planet13 - 7:15 pm on Aug 10, 2013 (gmt 0)
I was under the impression "follow" was implied and that blackholes would only be a problem in noindex, nofollow was used?
"follow" is the inherent property. No need to explicitly declare it, but some people do.
Suppose one of the pages that was generated by the tag app has the noindex meta tag in the head.
suppose a site with a high page rank linked to that page.
Even though the site is noindexed, the link juice would still flow "through" that page to other links on that page.