Dymero - 12:44 am on Feb 28, 2013 (gmt 0)
I'm making my way through the patent; been skipping around a bit, so I'm sure that'll do me no good.
 indicates that spam documents have between 100 and 1000 related phrases. If you have that many related phrases to the primary keyword, isn't it likely the article is overbroad, anyway, and should be pared down a bit or split into sub-articles?
Even if it were not spam, it seems to me that any search engine would have trouble identifying exactly what it is the article is about, so it wouldn't rank well for anything.