I see this all the time. Someone creates a post that says "Free PR7 backlink". You open the post and you find a link that takes you to a site that you create a page on with your link. That page has a PageRank of None, and maybe will eventually become a PR0 link or PR1. I personally find the PR of the root domain irrelevant unless my link goes on the front page. So why does everyone reference the Domain PR of the page's actual PR? And does the domain PR even matter?