There is a rule against unauthorized duplicate accounts. It's difficult to enforce without "the village" helping moderators enforce it. Moderators tend to only enforce it when there is misconduct done by the user behind those accounts, as in this case.
If someone attacked you on the street, then retreated and put on a disguise, you would be looking for the person behind the disguise too, wouldn't you?
They're not banned yet. They're being monitored. Help us identify Geriatrix's next new names please. You want him to follow the rules, too, right?
Please read this article. You can translate it with Google Translate by copy/pasting the URL into the source text entry box and clicking on the link that appears in the destination text box. The French phrase "mort aux cons" translates to "death to idiots". It originated in WWII and was associated with statements like there weren't enough bullets to kill all of the idiots. We don't allow players to use names associated with top leadership of National Socialism forces during WWII, and we don't allow them to use names associated with top leadership of Communist forces during WWII. There is historic documentation of genocide committed by both sides. Similarly, the lobby terms of use don't allow players to make statements that imply violence.
I'm glad that you're speaking up MarcusAurelius. It's good to get communication flowing so that we can correct misunderstandings. The goal is not to escalate. The goal is to get a permanent correction of the misconduct. You can help with it. You can talk to your friend and ask him to comply with the rules.