Well, don't we already have a LD rating scale (LD Beginner, etc?).

I would think of it like this:

Level 0: Cannot LD at all
Level 1: Has had 1 LD
Level 2: Has 1 LD a month
Level 3: Has 1 LD a week
Level 4: Has 2+ LDs a week
Level 5: Can LD all he/she wants, but has no control
Level 6: Can LD all he/she wants, and can even tutor lower levels, but has no control.
Level 7: Can LD everynight, and can control them.
Level 8: LDs naturally everynight without trying, and has been for at least a Decade.
Level 9: Is a great LD sage tutor, can LD and control LDs every night, has been doing it for at least a decade, and has lots of potential.
*Level 9+: Can do everything a 9 can do, but sometimes might go be able to have Beyond Imagination Dreams.
Level 10: Has all the Criteria of a Level 9 dreamer, but has also grown the respect of his/her peers enough to become an admin/mod/DG of a Dream forum of over thousands of people that they can then distribute their knowledge on. (A Lost Soul)
*Level 10+: Has all of the characteristics of a Level 10 dreamer, but may do something beyond that at that point.

*Existance unknown, but these things I mention here are suppose to be like DSing.

Sorry, I just had to put those in.