Last night I was a SK and a troll claimed he was SK. Naturally I killed him that night. I really just wanted to send him a message that impersonating me was not OK.
I'm thinking that at any time you can set a message such as "-killmsg Picking Rebecca Black as your name is only going to get you targeted." and the next time you kill this message is displayed anonymously before their last will message. There are a few ways it could be implemented. It could be only your target sees the message, or it could be a message that the whole town sees. Maybe you can set a personal message that only the person sees and a different message that the town can see. Also, Let the person/town see the message even if they survive the attack. Then they can use whatever information against you or in their defense.
Think of an anonymous message to your target as saying something to them right before you pull the trigger and an anonymous message to the town as a note you left on your target's corpse.
This shouldn't just be limited to SKs though. A vig could try to justify their kills to the town without outing themselves. A jailor can already tell his target why he's executing his target but could still make use of the anonymous message to the town. The Mafia could taunt and try to mislead the town via kill messages. Come on, What mafia doesn't want to quote Ezekiel 25:17 to everyone he's about to kill. Say "what?" Again MFer!
That's all. Thanks for reading.