I have a problem here. Filtering implies that some judgement has been made, and the person has been found wanting. It is harmful to advise against filtering, and therefore also harmful to advise against judging.

They decided whether to say "yes" or "no" to a request, and they (allegedly) didn't enter into some class of cognitive states associated with negative affect or disapproval.

Advising people not to judge others is not the same as what you said. My point is only that this constitues bad advice.