The experience levels are always associated to a given topic. So if a document is tagged with 'Advanced Beginner' this does not imply that the user may be an 'Advanced Beginner' in any topic.
A reader is starting to learn a new functional programming language. A tutorial teaching the basics of functional programming is labelled as 'Advanced Beginner'. The tutorial may assume that readers are experts in using a computer and therefore safely assume that they know how to handle the input devices or create and edit a file.