:D 3q3q3q!!! While it's difficult to pin down exactly what works and how, research is made much easier when the information is organized and summarized effectively. This is one of the best examples I have ever seen. It facilitates the process of finding things that work, or looking up a thing to see how good it is. I'm loving that evidence bar. It's not black-and-white, it shows a progression from unreliable to reliable data. My mind actually works a lot like that.
This is typical of official sources in Terramagne, by the way. They focus a lot more on evidence-based practices, so they like to show what has been proved effective, in testing phase, or disproven. They usually include a rank for new developments, though. Some folks are early adopters, and others have issues for which they've already tried the old stuff and need to watch for something else.