Yes, that old chestnut. It's such insanely toxic advice too.
You're correct that HR is there to protect the company. The original post did not specify "heavy hitters", nor did I ever say to make an accusatory report. HR doesn't have to specifically know who is taking their calls this way.
I'm sorry if you or others have had such bad experiences with the most basic of HR interactions, though if I assume you're taking your own advice I doubt you've ever tried.
There's the tactful way to do this, and then there's whining to HR. I would be very careful taking advice from whiners because they're the ones who keep propagating this bad faith myth about HR.
All I'm saying to do is notify them about ongoing behavior with an emphasis on how it probably makes the company look bad and that it's done by many. They don't care who is doing it and it's not personal. I'd honestly be very surprised if this behavior doesn't already fall under some existing policy.