My Vault has reached 200 Dweller capacity.
According to the info, the Radio Operators are supposedly raising the happiness of the Vault (I assume by playing music or being all chipper manic pixie happy over the PA system).
But everytime I inspect the Radio Rooms, this is what I see:
http://i637.photobucket.com/albums/uu100/zrowngctr/Fallout/Shelter/V77RadioRooms_zpsvfjrk9mj.png
They are just wandering around, not actually working!
When the Vault was below capacity, they'd be doing stuff with the things in the room, shuffling music discs around, pushing buttons on the console and one of them was non-stop talking into the microphone,
Are these rooms actually in use or are they just walking around not doing anything at all?