Super Mario Maker courses that are uploaded by the community will be labeled by Nintendo Moderators based on how difficult the course is before the user's course is available to download for the public.

I think it's pretty cool to know that someone from Nintendo is playing a user created course to test for difficulty. Almost makes me want to create frustrating, hair pulling courses to tease them.

Super Mario Maker will release on the Wii U on September 11th in North America.