How many times have you not asked a question you needed the answer to? How many times have you not said your piece to someone who needed to hear it?
Far from "Don't ask, don't tell", I suggest "Just ask, just tell". Do not worry yourself with the repercussions of the truth. Instead, concentrate on the truth you possess. Don't fill your truth with emotional baggage. Instead, speak your truth with open ears and an open mind. It will save everybody time and anxiety. Moreover, your stature will improve, by being able to say what everybody is, or should be, thinking.
Do not think your truth is absolute. Instead, listen earnestly for the truth of others. Conversation is the foundation of a healthy relationship.