Those who are not on a platform on which they can always speak about Krsna, but have a desire to always speak about Krsna, may restrict themselves from speaking about others out of fear of suffering. And generally that's good. At least they are not speaking unnecessarily about others and causing disturbance to others, but the motivation of not wanting to suffer is not completely pure. When a devotee actually has awakened his spontaneous attraction to always speak about Krsna, he doesn't have to worry about speaking critically or unnecessarily about others.
September 5, 2010, Almaty, Kazakhstan