I wouldn't call that abusing.
First of all. The server doesn't say anything about rdming, while a guy named "Reno" And Snipeh (snipeh got a misunderstanding) kept rage killing me.
And by the way, rdm doesn't matter if you kill a traitor or not, it's still rdm, and it's not fun. The server doesn't say anything about rdm, but all of the servers I visited don't have a rule about rdm, but ban the people who rdm. The Default is no rdm, so I am doing the right thing until I know what is what.