Brilliantly confusing and absolutely mad plan, Elempi.
Though I wonder. With enough frequenting of the forums (as I think just about all of us in the Werewolf obsessed group have), it could be sort of obvious which of us both play Werewolf and spend enough time chatting with each other to be willing to reveal our passwords. (Mine, by the way, comes from a random generator that I constructed to make 8 character, case-sensitive alpha-numeric passwords.) So it might not be too difficult to guess who swapped identities with whom, even if we do attempt to imitate each other's styles.
*Runs in terror from the skeletal hand of Doom*