Unless a need arises, we'll stick to the main InVision Terms of Service, linked at the very bottom of the main page. Pay special attention to 3.1.b, prohibiting abusive, threatening posts. If you have a personal message for one particular person, please either email them off the board or use the PM ( Personal Message ) button feature on everybody's name, post bar and profile.
Hopefully, no further guidelines will be needed!

Please be considerate of those users with dial-up connections and LIMIT picture posting. Germane illustrations are always welcome.