I would say it depends and what kind of sin or whatever, a pastor has fallen into. Obviously, the kind of sin the mam in this article had fallen into, he should never had been pastor, nor should EVER be one again. But, first, he needs to be born again by the Spirit of God.
Just to put my own ever-loving 2 cents into this ridiculous thread: my observation is that the monikers by the names of "Older than old", "sojourner from wilderness", and "Banging on" are all the same person, posing as three different people.
While screaming for humility, "they" post sarcastic and divisive questions and insults... while pretending to have some sort of authority. Amazing.