It generates interactive score programs — stars, factors, or percentages — enabling users to submit their evaluations when strengthening their reliability and authenticity within search results. I wouldn’t give Considerably body weight to their advice. They are saying that "Structured information markup is most effortlessly represented in JSON-LD structure", but https://expressbookmark.com/story18866109/everything-about-google-rich-snippet-automatico-json-ld-open-graph-seo