Shouldn't the town be hunting mafia though, not specifically the KP?
To answer your question, however, I don't know if a role would change the gameplay dynamics for a player, or at least, a veteran one. I would think the goal would be to blend in and align their gameplay as close as to their TP meta as possible, and posting frequency would certainly be something that other players look at when creating reads. In my opinion, the KP would not be a slanker as that would draw attention to themselves, unless they had a pregame excuse already built in for activity.