Earlier quoted context omitted.
I mean, you did just spin it into its worst interpretation. I read the grandparent post as meaning, "Be brutal when the least ego / public stature is at risk, but never cut people down in front of their peers."
That assumes the only problem with being brutal is making people look bad in front of their peers. That's far from the only problem with being brutal.
I'm also not a fan of intentionally putting the worst possible spin on someone's words. Reading charitably is pretty much always a net positive for any thread.