On April 12th 2023, Google has released another update which is called "reviews update" (yes, that's not a typo!) and it's actually an upgraded version of the product review update.
Since most of the content we write "falls" under the definition of reviews, this means that Google examines the writer's expertise on almost any content in order to determine if it is good content.
Updating the reviews is perhaps Google's first step to solve the phenomenon of AI content because Google checks if the writer is an expert and this time not only for products he reviews but for every review of services, products, travel destinations, movies, opinion articles and other topics.
"The reviews system is designed to evaluate articles, blog posts, pages or similar first-party standalone content written with the purpose of providing a recommendation, giving an opinion, or providing analysis. It does not evaluate third-party reviews, such as those posted by users in the reviews section of a product or services page." (Google’s documentation about the reviews system)
As usual, Google provides a series of questions to help us produce quality content, the questions can be found here:
Google has changed the product reviews system to a review only system, showing that the new documentation applies to all assessment types and now also includes analysis of:
Services and businesses;
Destinations;
Media (e.g. games, movies).
If we try to predict, we estimate that in addition to checking the quality of the reviews, one of Google's next steps will be to also check the pace of adding content to websites to make sure that our writing profile is "natural" (just as it did with links at the time).
That is, if you decide to upload hundreds of articles at once, Google's radar may mark you as a site with AI content.
In the combination of the 'reviews' updates, the 'useful content' and a fast content upload rate, there is a reasonable chance that your website will be marked as problematic and fly off its Google rankings.