Yeah, that was an interesting adaptation from the Spanish language academy to the use of computers.
At the time there was some public debate similar to the "pluto is no longer a planet".
If they know which blogs get the best search results, they can focus their efforts on spamming those blogs. Of course, that would mean the gibberish they post would have to actually contain a search query they want to optimize for.
http://en.wikipedia.org/wiki/Strauss_v._Horton