As AlienChild said; the main way to add people to KOS (at least for me) is right click on the sword mini map icon and use "Add attacker to KOS" and get the attacker names that way; usually when I get ganked I add all gankers that way, even if they have funny accents in their name, are long gone out of sight, or whatever. When I get repeatedly camped and I noticed 2 or more campers are from the same guild; I also add "Add guild to kos" but that one needs to be typed