Any games created before 11AM with the previous nights of terror modifier get a message at 11AM pacific that “The game server is going down for maintenance in # minutes” starting at 30 minutes, which is basically to prevent people from keeping a game open for weeks to prevent exploiting their favorite 22 Nights of Terror event modifier. (-50% vendor discount)
The event is over, there’s no longer a need for this, Blizzard. Pass a note on to Raymond the Janitor to turn it off when he makes his rounds.