A recently released research paper looked to see if Google Search, as well as Bing and DuckDuckGo, search quality has improved over the past year or so. The study concluded “that dynamic adversarial spam in the form of low-quality, mass-produced commercial content deserves more attention.”Are search results getting worse? The study aims to figure out if search results are getting worse. And the study concludes that specifically with Google the search results “seem to have improved” to some extent from the start of the study to its completion. It seems like the Google reviews update has been targeting some of these spammy affiliate review content, according to the study.