Originally Posted by turkey
I think giving names to other difficulties is kind of silly, its clear people who are highly skilled will crave and create tracks harder than are shipped in game.
What might be more useful is rather than naming them with generic levels, or possibly to supplement these classifications would be to have a community difficulty difficulty rank based on average player skill (who have completed the track) and their results in the track. [insert clever meta maths here]
That way people can search/select harder tracks then they have by some semi quantitative measure,or but the flip see that some tracks are just rated too highly for them to find fun and look lower down the scale.