The problem with this is that it doesn't take much to tip the scales. As this: http://infoscience.epfl.ch/record/99356/files/SilversteinHMM... (admittedly old, but foundational) study shows, most web searchers stop after the first 10 results.

If a result is (wrongly) pushed off the first page, much less down to the 3rd or 4th, it may as well not be there for almost all users. That, combined with Google's dominant position in search means that pages may well effectively be erased from the internet as far as many users are concerned.