Mods can't do anything about making people behave.
Get in touch with Max if it's serious... IF it's serious.

If someone is just annoying you, you're better off dealing with it on your own. Just delete their messages, because I'm fairly sure most of us don't want to get involved in personal squabbles.

If you make somebody's message public just because they piss you off, don't expect sympathy. Expect mistrust.