Yes, so in this case there is a pagerank 9 site. Let's call it "Site A". On the homepage of Site A is a hidden link to "Site B". Site B is a pagerank 8 and was just registered in January. Site B has links to Sites C, D, E, F and G. Those sites are pagerank 6.
The link on Site A was hidden in a No Script tag. Interestingly, there is another discussion forum where the link on Site A was discovered. Then the link was removed. But not before someone shot a screencast and published it on youtube where they examined the source code showing the no script tage. Then a week later the link was right back on Site A.
This is a phenomenon that happens on all sorts of sites, and we've talked about it here on WebmasterWorld in the past. It would just be nice if high profile cases were dealt with faster. I'm sure there are unsuspecting users who are even buying links from these people thinking they must be some kind of geniuses with their high pagerank.