While I appreciate the well constructed feedback, Sosari, that is not exactly what that section in our welcome thread means. Customer Support has zero involvement in the development of the game nor implementation of any features. That section was referring to discussions within the Support sphere of influence. Such as providing insights into how our policies work.
If you have feedback about the game you’ll want to direct that to the forum that best suited the subject. For example, feedback on Mythic+ and how keys work might be best suited for the Dungeons, Raids and Scenarios forum.
If a subject does not have a specific category the General Discussion forum works. You can also submit feedback through the in-game client by clicking on the Support option in the main menu to bring up the in-game browser and then select the Submit a Suggestion option.