Expedition: general discussions.

and from all the comments, I understood

Among “all the comments,” there were three: a person who has a grudge against Revan and strongly desires to ruin the game; a person who didn’t play and didn’t read the Obelisks and simply listened to the first one; and Nebok, who genuinely decided that this was a GM character.
This was precisely an instance of that very trolling – not the kind you imagined, but the real thing that you ultimately fell for.

GM characters do exist – but your situations are not such cases in any game.