How are public, open wrongs to be forbidden?

Question:
Is it a condition in forbidding open wrongs that it be done in private, as is the case with advice, or is an open wrong to be forbidden openly without privacy?

Answer:
If it is done among people, it is forbidden openly. But between you and the person who did it, you speak to him privately and advise him. However, if he does it in front of people, you make it clear to them that this is a wrong and is not permissible, so that no one is misled by it. If you see him committing a wrong, you must advise him privately. If you see him alone, you say to him: "O servant of Allah, this is a wrong." And similar kind words, with good manners and gentleness, as your Lord said: [Surah al-Nahl: 125]. But if he does it in front of people, you make it clear to him that this is a wrong and that this action is not permissible. For example, one who smokes in front of people, one who drinks intoxicants in front of people, one who curses and swears, these are forbidden openly.
Q: The intention is regarding public, open wrongs; are they to be forbidden openly?
A: Yes, they are to be forbidden openly. As long as they are open, they are forbidden openly.
Q: Is privacy a condition for them?
A: It is made clear to people that they are wrongs. One who openly commits wrongs in the markets is to be forbidden.