ThreadMode is more of a conversation than DocumentMode. Wiki is not the best place to have 'conversation,' per se. It is a good place to store information. Sometimes that information is created in conversation. ThreadMode posts are usually signed individually. Each posting by a different person is signed with their name. It helps if authors add themselves into the list of NamePages. Thread mode is easier to create, and harder to read. Eventually, really good conversations can be cleaned up in a process called ReFactoring. The reading and cleaning easier if posts are written in 3rd person point of view. Indenting and Italics help distinguish between authors. HowToUseWiki describes identing and italics. MeatBall:ThreadMode has more on ThreadMode.