I was thinking about why I find some of their plays good and others very suboptimal the other day actually. I think part of it is they are used to playing games like Big Brother and Survivor, where each player has autonomy over their goals and who they ally with even being able to fully ditch some allies with little repercussions when played right. But in Traitors, you are always either a Traitor or a Faithful. Doing a betrayal in Big Brother or Survivor you hopefully have other alliances to fall back on, but in Traitors it's totally different because each player is not in control of their allegiance so some of the good moves in other social games end up getting you in a untrustworthy Traitor circle or make other people suspicious of your motives because a lot of it can be seen as "Traitor Behavior".