A Blended Perspectives legal client had an initial user base working in SharePoint Wiki 2010 and was experiencing significant challenges when contributing content. They were concerned that such challenges may inhibit further engagement on the site.
They concluded that the editor in SharePoint Wiki is not intuitive and especially experienced difficulties setting up a page hierarchy. They were concerned that the lack of user-friendliness would severely impact the the ability and willingness of their users to participate.
This paper compared Confluence 5.2 with Sharepoint 2010.