In general we are the same as Rex. However, there are some legitimate reasons why you would not want ports combined regarding the same person.
For example, when I moved out of my parents house I got my own port at the Bank. However, I am a deputy on my parent's SDB, so my name still shows up on their port as well. In this case, tt makes sense for me to be on two ports.
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With the lights out, it's less dangerous.