I may be wrong (I'm not a lawyer) but public denunciation of individuals might be hate speech or harassment. If you want to know for sure, you should consult a lawyer. I can only give warnings out of gut feeling. My feeling now says I'm hungry. Time to get something to eat.
Hate speech is, outside the law, speech that attacks a person or group on the basis of e.g. race, religion, gender, disability, or sexual orientation.