so my best friend's girlfriend is cheating on him and has been for week, should i post her name and number on 4chan?
1. You say it in present tense. Does your friend not know? Why haven't you told him?
2. The internet is not your personal army.
3. Consequences should be proportional. Cheating is awful, but emotionally damaging a single person isn't worth the wrath of being doxxed.