LibreOffice is a huge open-source office suite, with numerous functionalities that need to be studied and learned in order to improve one's LibreOffice experience (especially when working on complex projects).
Of course, plenty of documentation is available on the web, but, there are situations when users are searching for a quick, yet "professional" answer for various reasons (a LibreOffice project can't be finished until the "x" issue is solved, the upgrade from 3.4.x to 3.5.x failed, is Microsoft Visio import available on LibreOffice?, etc).