A key reason for using a content management system such as Drupal is to spread out the work of adding content to your site. Roles and user accounts make that possible.
The Drutopia distribution is built in a modular way, so that you can turn on and use only the particular “features” or pieces of functionality that you want on your site. Learn about the content type features you can choose from.
All the types, topics, and other terms classifying content on a Drutopia site can be used to narrow down what you are shown. Faceted search powers this functionality.