I'm torn on LG.
On one hand, he seems to be posting more than in Taormina. Which seems a little suspicious.
On the other, his posts almost seem too argumentative to be mafia. The back and forth about math just seems out of character for someone who is trying to hide amongst the crowd.
So he is either trying to be more involved in this game in order to be a helpful townie, or it is because he's trying hard to "not" act like the stereotypical mafia.
Right now, I would lean towards the former.
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