I think if we take the PM role as true, it is pretty clear it is pro-town. The question is whether we believe it is authentic or not.
I for one, think it could be true, based on the other abnormalities found throughout the game.
Looking at the other people left in town:
Porkens: I feel his explanation of role and consequences pretty much matches for the time being. Could be a SK but the Vig story holds solid too.
Seraphim: I don't get a mafia vibe, pretty consistent throughout the game.
RBT: A lurker, like myself
, but I guess I'm trying to be less of a lurker as of late.
Juls: I don't get any mafia tell so far, pretty consistent too.
Ztife: I guess this is WIFOM, but at times Ztife seems to me as trying to be too town
. Kind of the same behavior I noticed on him on a previous game, in which he ended up being a pretty clever mafia scum. His posting style has changed recently, I wonder if the cause is someone pointed out his long postings were not being particularly pro-town or just a change of pace in the game.