1)

Why is Naruto MMOARPG without EXAMS, for real? (I mean exams like events every week/2-3 week/mounth? Exam of genin - quest. It is good(bcz adult ppl in academy - funny and NOT RP), but chunin/jounin exam without 1v1 fight-test. (against REAL enemy) I want to say, that everybody will be Jounin/Chounin in 1 week from start of server.

My variant:

Example:

Chunin exam will be in EVERY village (important)  and every week/2 week/3 week/month (important, but you will decide peredicity of this exam)

before this - registration (board/NPC)

1.1. stage is writing test. With event master(EM) it will be like this:

O - true, X - false or exact answer.
5 questions(1 hard, 2 medium, 2 easy):

(Hard)EM: There appears to be ninja standing in a row in front of you, but one is clone. The ninja in the center has blue eyes and the ninja on the right has green eyes. The ninja on the left has a shadow, the ninja in the right has no shadow. True or false, the ninja on the right is not a clone.
PM to EM your answer -> EM will count all of answers(maybe excel, who knows) -> next question. After all questions: EM will decide prevent or dont this guy. (3 right answers - passed)

It may take more time, than someone wants(It's MMOARPG, so deal with it), but will reduce number of people in next stage.

1.2 is stage of team (3), find 2 guys wont be so hard (i tho) (can be skipped)

1.3. Main of this event - 1v1.

Start of this stage - everybody (who passed) comes to fighting arena. Random system, which will determine two people.
Fight rules ( from Naruto's world) (?)
After fighter EM (if he can) changes title of winner to chunin. Or excel (lul) -> this char is passed all exam -> send to GM or etc.

Negative sides:

1. Take a lot of time. (For me, it's normal)
2. 11 EM (Idk, maybe i need to re-think something)

Positive sides:

1. More RP, than your variant.
2. Compair own strenght with others.
3. The difference in ranks/titles/jobs. (Everybody will be shinobi without this event(screening) - it means no merchants/no Ramen sellers/travelers/merchant etc.)
4. Not boring.
5. Deserve your title.

3) 

Jounin exam will be in ONE of 11 village(important, because half of people will screening before coming in village), maybe exam can be in ~5 buildings (dont know about number of people).

3.2

Same as Chunin exam, but questions will be harder. You can improvise or accept suggestions from players, as u wish.

4) Cursed marks

Why not? Get well or die (Sasuke's example).

Cursed mark gives you power, but you will have problem with control of char, for example. (For real, if you lose totaly control - you will dead or near to dead)

If you're not from main house - obey or suffer/die.

You should reduce the list of Juinjitsu, but remove it whole - not gut.

PS: About exam - you should think about it, maybe not like me (excel, 5 building, 11 EM), but EXAMS MUST BE LIKE EVENT.