Quote Originally Posted by Kirika- View Post
It is.
And, yes, it is enforced and those found in violation are punished.
Section: Obstruction of play - Intentional leaving or disconnection

As to if the player's who dropped have a "legit" reason other than "I didn't want the lesser exp run, so I dropped", that is up to the GM's to investigate.
That is for intentionally disconnecting to force the party to vote dismiss you so you dont take the penalty. Not for leaving an instance which already has a penalty. Otherwise they would just make the leaving penalty increase each instance...

Also, if you start reporting people for leaving you could be actioned for making malicious and false reports lol.