This is a feature that I've personally seen in other MMOs, and I'm surprised that it hasn't even remotely been brought up yet in XIV. Yes, blacklisting and promptly reporting the offender to GMs are viable options, but during a grand scale event such as the performances that A Stage Reborn puts on, there is no immediate relief for someone who is blatantly disrupting the event. This feature will also be useful for those who run across the unfortunate circumstance of being harassed, or even worse, stalked, in-game. On top of blacklisting and reporting, being able to boot a player from our private quarters adds another layer of protection for us while we're trying to enjoy the game.