Couldn't the employer convert that into a filter?

I'm not sure I'm understanding your point. Can you elaborate?

	▲	joshjdr 2 hours ago \| parent [-]
		From a prospective employer’s perspective: Is the candidate going to respect the NDA you’re planning to ask them to sign? Similar to asking the candidate what they dislike about their previous boss. Their response may indicate how they’ll talk about you someday.