Make DSEs both OPTIONAL (ability to decline a DSE if it finds you "get us out of here, Mr. Scott!") and user-triggerable (hailing or firing on an enemy in sector space; why should they only be able to ruin our day and not we theirs?). Can't tell you how many times I've been trying to find a DSE only to see an "enemy signal contact," chase it down and nothing happens. I can't interact with it or join a fight. It never transforms into a red portal. Seems silly to have them roaming around if they're non-interactive. They should just be shown as neutrals if they're not fightable enemies.