I remember SWG used to have it so the party that did the most damage would get credit for a kill.
They don't have that in SWTOR instead they have it so NPCS/MOBS get tagged by whoever hits them first & The one-shot kill for NP is obviously to keep multiple raids from joining forces to down it easier.
This thread/topic just proves yet again that if people can find a way to exploit a MMO to grief other players they will use it.
This is completely off topic, but it is kind of funny how SWG was so much better then SWTOR. All SWTOR has ove SWG is graphics and voice acting...