Never felt the need to tell on anyone. Even as an elder I would just tell them to Narc on themselves.
Don't have any respect for anyone who was a Narc.
But I understand it was under the influence of brainwashing and fear that they would share in their sins if they didn't.
One brother who was a former Cop would have you confide in him as if he gave a Damn and then he would run like HELL to the elders.
Worthless scum bag of a man or a brother.