Wikipedia's Rules of Etiquette

Assume good faith. Treat others as you would have them treat you--even if they are new. We were all new once. ...raw text may be ambiguous and often seems ruder than the same words coming from a person standing in front of you...Be careful of how you interpret what you read: what you understand might not be what the writer means. Work towards agreement. Argue facts, not personalities. Do not ignore questions. Concede a point when you have no response to it, or admit when you disagree based o...