It works to your advantage when trying to find an instance of a room that is either empty or crowded. An example is when trying to do credit runs and you want to play the music mixer....rather than go to a room with a lot of people in it, you can find an empty room and quickly go through and play your music. Another example is when doing a quest that requires finding skulls or shamrocks, etc., it is easier to do that in an empty room where others won't be standing on the items you are trying to find.