If you want to affirm what someone has posted, please do so.
If you need to challenge someone’s personal story, then begin by telling us how your religious journey took you down another path.
If you are angry because someone does not believe and act as you do, then simply write, “I am angry. I wish you could be like me.” [No threats. No put downs. No infallible pronouncements. No lies.]
If you have personally been moved by what someone has shared, then you might write, “I’m gratified/challenged/edified by your words.” or “Please tell me how your were changed by your story.”