Norwegian here: I've previously read self-improvement books written by Americans that state advice that gives me the same vibes as this one, specifically a feeling of this being a very bad idea. I'm almost certain that starting a salary negotiation with a demand 80% higher than my actual goal would either get me laughed out of the room, or a polite "you're too expensive for us, goodbye".
I get the impression there's a major cultural aspect to this, with negotiation tactics that are considered acceptable or not in each culture. Does anyone have any experiences confirming or denying this? I don't think I'll stake my reputation in this small-ish city on trying this out.