> Lying isn't a negotiation tactic or a loophole. It's lying.

"Lies" and "negotiation tactics" are overlapping sets.

There are negotiation tactics that are not lies, and lies that are not negotiation tactics, but just as surely, there are lies that are negotiation tactics.

> Lying: not getting a job offer, but tell your manager you did.

Sure, that's a lie. And if you tell your manager this as part of a stratagem to get a better compensation deal in your current job, its also a negotiation strategy.

It may be an unethical negotiation strategy, but it is certainly a negotiation strategy.