Digg I Want My PageRank Back

With regards to content appearing in search engines as belonging to both, have you bothered to check or are you making assumptions? Seems to me (from a test on some of the latest Digg stories) that the original author is ranked for his/her post, but Digg is not within the first 5 or so pages. Furthermore, even when appending "digg" to the search term, only the link to the story summary is shown and not the toolbar-clad page.