The document discusses common misuses and misunderstandings of SharePoint including: 1) Using SharePoint for purposes other than what it was intended for or only utilizing one of its capabilities. 2) Leaving users to figure out SharePoint on their own or treating it like a typical server product with tight IT controls. 3) Failing to include important libraries and lists in searches or misusing/misunderstanding security. 4) Viewing SharePoint as only a web product and ignoring its Windows and Office integration or misunderstanding services like Excel, Forms, and InfoPath.