New Weather Channel iPhone app

I noticed that the new Weather Channel app has a feedback section in the settings section of the app. There's a knowledge base where you can ask questions and get answers from the developers. Is this a new iOS feature or have apps implemented it before? I didn't have any problem navigating the new app but based on some of the questions a number of people did. And some asked if it was available for iOS 6 (it's not). I think this is a great feature and wish more apps would incorporate it.

As an aside, I see the new Weather Channel app is getting a lot of negative reviews on the AppStore. Personally I love it. I get the feeling people wrote reviews before they spent enough time using it. Or are just giving it a poor rating because it looks different than what they're used to.