CZ:Professionalism

The Citizendium differs significantly from other online communities in its low tolerance for incivility and disruption. It is essential, for there to be efficient content production and motivated contributors, that authors (i.e., everyone playing the author role) treat each other, and each other's work, respectfully.

Use the talk page

A great many problems could be avoided if people were to use the "talk" pages--i.e., the pages you arrive at by pressing the "discussion" tab--before making any potentially controversial changes.