Well backstabbing is backstabbing and anyone doing so will hear so too... I remember a vivid discussion in my first MP game about it. I said someone was a backstabber and then the host insisted I shouldn't do that but I had to call "the god of ... " a backstabber.. same difference to me. Of course that made me call the god of whatever a bit more than a backstabber. (Hey what can I say, my god is just like me and dislikes backstabbing unless he's doing it himself.. and my god just has numerous ways to let his displeasure be known
And about RP in MP games in general.. no.. I just want to win a game for once

... I to tend to send a few message and post in the threads "in character" but usually noone follows my lead so I forget about it.
--> though I said never I think both examples above show that I do talk a bit RP but it affects nothing in game really
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