I like to play little mischievous as that provoke otherwise dormant emotions in others, and that's good for us. Releasing catharsis in healthy way is a major benefit of our forums or blogs.
Normally if there is any issue, a moderator must inform the participants, where it is, if they correct the course, it's fine.
The moderator can expunge the offending post without disturbing the healthy debate.
If the thread still continues to go astray, then moderator must warn the participants before locking the thread.
If a moderator locks a thread without giving any indication, warning or chance to correct the participation, It's different democracy.
You may have different opinion but where I am wrong please correct me.
Best regards
Pun