And not to beat the horse here, but even if Prof turns around and says "it's okay, you can give me strikes for this", I can't, because I also have to worry about precedent.
For example, if a player isn't following the thread closely, and submits a kill on a vocal and important townie, causing the town to lose... does that deserve a strike? What about if a player disagrees with the thread than another is town, shoots them and is wrong? You'd surely say, absolutely not a strike, they're just playing the game, right? But then I can't stop the players like Prof from doing something like they did in this game, and then invoking one of the above two scenarios as a defence. So the fairest line to draw is that the moment the host has given something the OK, whether that be a post, an action, or whatever, that action is no longer something that can be struck against.
So how do I avoid the next pro town indie who wants to change their role into a scum one? Not give them the tools is the most obvious answer. Given that this scenario could only have been brought about by something as silly as a wish, the best option I see is to take those away, that we may at least remove the most egregious of examples from repeating. But I don't want to having to start to say "well you can't include this role and this ability in games hosted here", because I personally hate the idea of players being stripped of choice. But that obviously then relies on trust, trust which has repeatedly been abused and disgarded.
I will have to think on it, and I suspect no answer I come to will be universally popular.