The spam page example given in the article is: http://www.mahalo.com/aaronwall Question: how does somebody end up at this spam page? Google seems to do a good job of filtering stuff like this. It wasn't in the first 10 or so pages of search results for "aaron wall"
It was never an issue of how many of the empty pages were ranking per se (although quite a few do, just not that one), but rather of the sheer numbers of them that were collecting enough tiny quantities of of PageRank each, that was then (and is still, as a matter of fact) adding up to massive amounts of self-sustaining ranking power:
http://smackdown.blogsblogsblogs.com/2010/02/22/apparently-j...
I hope that helps.