No, the keyword ignoring stems more from catering to the majority of people who don't know how to logically formulate a search for a search engine that expects

No, the keyword ignoring stems more from catering to the majority of people who don't know how to logically formulate a search for a search engine that expects every word to match. Most people will intuitively just try to ask the search engine a question (even if not literally phrased as such), and so Google has adapted to fill that need. Which even for those of us who would prefer something a bit more clear cut, is honestly handy a lot of the time. I think using +plus +before +keywords still works for situations when you don't want any words ignored? Certainly agree it seems like they could do a better job of burying auto-generated sites though. (Although I'm sure it's a difficult problem!)