Evils are informed that they were Starbound, but not Town Traitors or Town Recruits... who are also evil.
I propose we reuse the old Starbound message for specifically this scenario.
If a Town Traitor or Town Recruit were to hit a Starspawn's Unknown Obstacle, they will see the following message:
You feel a strange cosmic force overwhelming you, preventing you from carrying out your actions tonight. You were Starbound!
XML entry:
<Entry key="BTOS_GAME_1033" style="identity_alert">You feel a strange cosmic force overwhelming you, preventing you from carrying out your actions tonight. You were [[:316]]!</Entry>
Starspawn!"