Suggestion: Difficulty ranking for challenges.

Question

Hi I really like that so many people post challenges for others to pick up and learn from them, but I thought:
"Wouldn't it be great if you could tell instantly how difficult this challenge is?"
We could achieve this by adding a key to every challenge name we post. I suggest this key:
#a = very hard
#b = hard
#c = medium
#d = easy
#e = very easy
For example: "super though challenge #a"
What do you think about this idea?

Answer 1

Good idea

Answer 2

good!

Answer 3

good!

Answer 4

This is clever!

Answer 5

This is a good idea !