You see, Thermal, there's two ways to approach that statement.

If I say that Csargo is mafia, how do you know I'm not just branding an innocent man?
If I say that Csargo is town, how do you know I'm not just covering for a scum partner?

And then you have to consider what if I expect you to think the contrary, so I lie to cover what you believe is a lie? So I could say that Csargo is mafia because I know you'll think I'm lying and brand him as town, thereby ensuring he's safe for a while. xD