It's not your fault when you lose link.
It's completely pathetic to kill someone you know is link dead. It's equivalent to taking someone's monopoly money when they leave the room. Puts people off the game. Or robbing some old lady who has collapsed.
Someone I know ooc attacked me the other day. I fled, leaving my linkdead groupmate, who promptly got attacked. I aim'd the guy I know to tell him the groupmate is linkdead and he spared him. Personally, I think that is laudable. But if you want to kill people who are effectively under neuro from an ooc source, that says a lot about you. That you are willing to be a real life dick in order to get a pk or gear.