I'm sure that's what happened; I've seen similar things before.
Because some viewers don't know how to behave properly; they start throwing out spoilers and acting unfairly. Maretti wouldn't lie.
I can't say anything for sure, but the situation is quite possible.
All of this is very interesting, guys, but I was watching the stream when Joestairs attacked Shahti, and no one was writing anything to him about the book.
And in any case, whatever is written in the chat, whatever spoilers and hints are given, the player always decides for himself what to do in a particular situation.
Anyway, I didn't write about the phrase in Maretti's report to start an argument. The guy won fairly, but it sounds like some kind of hint made the game.