I thought it was unfair that I couldn't gain full posting privileges on arena junkies without a 2400+ team so I came up with a very easy solution.
When creating your account on arena junkies it will ask for your character name and server, simply go to sk-gaming or even the wowarmory ladder and pick a random player with at least one team above 2400 , use this player to register, if it says " Player is already registered " then simply pick another one.
There you go, full posting privileges. ;D