Feng shui, teaching people with moral problems and then harming others?

I don't know, it is the fault of ignorance, which will reduce my blessings. As the upstairs said, you can only accumulate more virtues to make up for your mistakes. If you know that the other person has moral problems and still teach, it is a kind of knowingly. He hurts people just like you do, and there will be retribution. Of course, whether you know it or not, there will be retribution for his harm. Moreover, everyone with virtue can't be hurt if he wants to.