[jjs]

Perhaps you simply need to better enforce the HN Guidelines: Be civil. Don't say things you wouldn't say in a face to face conversation.

If someone posts something that you strongly suspect they wouldn't say in person, suspend their account until either (a) they verifiably attach their real name to it, demonstrating their willingness to say it without the cloak of pseudonymity; or (b) they retract the offending post.