I was wondering how Reputation really works. How many reps do you need to get a green rep notches or visa versa? And is there a post system that upgrades your title? Example, I'm consider a "student" while some other members have "anbu," "Mist Lord" e.t.c

I know many probably would get pissed for the revivle, but all the other Reputation threads had been locked. I just want to know how the system works.