The idea here is that if a social fight breaks out between two colonists, anyone nearby who is friendly with both of those involved will react in some way. Maybe they will try to break up the fight, or something else I dunno.
It's really jarring how other colonists can just walk past two colonist intent on beating each other up like nothing is happening. Also, allowing other people to intervene will mean that social fights will be less likely to cause serious injuries except under certain conditions, which I think is a plus. Basically unless one or both of the people involved are not really friendly with anyone else, or the fight breaks out in an isolated corner of the settlement, or everyone in the colony is already in a terrible mood or something along those lines.
It's really jarring how other colonists can just walk past two colonist intent on beating each other up like nothing is happening. Also, allowing other people to intervene will mean that social fights will be less likely to cause serious injuries except under certain conditions, which I think is a plus. Basically unless one or both of the people involved are not really friendly with anyone else, or the fight breaks out in an isolated corner of the settlement, or everyone in the colony is already in a terrible mood or something along those lines.