I agree that if he is able to write, he could post something on such a forum. It would be highly therapeutic, psychologically or even spiritually.
I had been a TRE/TRI before; power that is inherent in those positions can be very corruptive. I had to constantly remind myself to watch out for any ego trips, high handedness and treating others as any less competent. Being challenged by a checkee can be quite " challenging " and there are a few times when I found that the checkee was " more correct " than I was. It was very tempting to brush that aside and use the big stick; on reflection, I guess I subconscously knew that I am going to do myself more harm besides doing something humanly wrong if I were to succumb to that. This is especially so with non native English speakers who do not articulate their " challenges " very well so much so that it all seems a big affront to a checker who is native English speaking.