Mafia 99. The tragedy of the city of Ve-He.

Did they figure out my role right away?

Not immediately. For some time, they thought you were Moak until Nefela led us to his real trail.

Added 3 minutes later

By the way, I didn't pay much attention to that phrase because it simply didn't occur to me that I could write information directly and not get modkilled. I considered this phrase as "I think these three are mafia."

Perhaps because I played in formats that allow for such "testaments," I don't see anything modkill-worthy here.
As long as the check is alive and his role is unknown, this phrase really doesn't mean much (because Nefela didn't insist that someone from the trio should be hanged because, according to her table, he was mafia).
And when Moak was eliminated, it seems logical to reread his posts and use the "testament."