St. Paisios the Athonite once said, “He who thinks he is capable of correcting others has too much ego.” –
It is only years later that I have come to understand this.
When one is ready to change they will ask, if they don’t ask them they are not willing. And a man convinced against his will is of the same opinion still.
Correct should be left to bishops and priests. It is not the place for hermits to meddle. You will only harm yourself.
What we can do, in fact must do, is take it to the Lord in prayer. God can do what we can never do. Truth God and keep quiet.