Hey, attacking a refugee in of itself is not illegal. You will be publicly shunned, and probably hunted by everyone, but its not illegal. ;P. If you continuously do it, to the point where you drive someone off the server, that is illegal.
"Well, I mean, like, is it really murder if you push them in front of a moving train?"
"Nova, you are the coolest person I have ever met."
"Well, you clearly haven't met many people."
"Listen my bruddas, I have proof that PI is da way."