Goblins will despawn after being left passive for 1 minute, resulting in failure for the op.
Others assisting with the fight may also check the ??? after the win for an exp/limit reward regardless of whether they have the mission active. However. if they do not have the mission active, they will not receive Allied Notes or credit for the victory.
Goblins will Rage after about 15 minutes, receiving massive increases to attack, defense, and evasion.