when i was the fool and belived the WIKI that for the gun runners quest you will get a minigun BP i asked some friend to do it with me.
well i got a super sledge and a plasma pistol (sold by merchants) bps (total bs)
and now i stand -100 gun runners rep for 2 days - it does not decay
should it not go to 0? Cant do quests for them with this rep.