I don't see any obvious breaking strategy yet.
After a couple days town could do a massclaim of priority lists to get *some* information - but I'm not sure scum have particularly strong incentives to target specific roles and then lie about it. And none of the roles are strong for town if everyone is telling the truth about their roles. I suspect mostly this would play out as a huge mass of very weak information that is hiding that it is just Vanilla underneath.