IC how would you have known a player is a rogue? Like seriously she could have just lied and said she was any nation, no noble would say they were rogue if they knew death was the result and if D'Hara had asked us who this noble was we would have said she was of Asylon. The mechanism is flawed.
Character, not player.
And the same way we know all kinds of useful information: the grapevine.
If it was a noble, then the allegiance status of any of the few hundred high nobles on a given continent (the very top interesting people out of hundreds of thousands or millions) would be known. By everyone. All the time.
If it was a commoner, then pff! who cares? Execute them all you like.
