Alright, all of these "Hacked" Communities are actually not whatsoever. all you need to do is either, make your own gym in Wii Fit U or, make a tornament in Mario Kart 8, most people use Wii Fit Gyms which is why they have the same banner as the Wii Fit U community.

I know how to make a ¨Hacked community¨ and you don't! (Partial Tutorial at 5 followers.)