It’s a very particular style of prose so I can see why you might have a strong negative reaction, but - honestly I have the opposite reaction.
The narrator doesn’t sound like a man whose morals I much respect - but the way the story is written is playful, all the little loops of foreshadowing and callback are fun; it reminds me a bit of Neal Stephenson, on the edge of trying too hard to be smart while also affecting mock humility - but winking at the audience the whole time. “you’re clever enough to be in on the joke,” it reassures you.
I think rather than seeing that style as an obstacle to the point being made, the style is part of the point. It’s a mode of storytelling to be enjoyed. (Or not, in your case.) The point is that the narrator is this wonderful character who is smarter than his surroundings and he gets up to mischief, the consequences of which echo farther than you might expect. Is one man truly responsible for shaping the way an entire generation thinks, by careful manipulation of Wikipedia? Could you well have done the same, if you were the right man, at the right time and place? Would you?