Before performing potentially dangerous actions (e.x. deleting files), the website asks for user confirmation and explains the consequences of deletion (for non-recoverable data)
High
Users can resume work where they have left off after receiving help and come back to help page if necessary (e.x. help page opens in a new tab)
Middle
New users receive help, while instructions and features are presented gradually (e.x. advanced features are not displayed by default)
Middle
In case users can't find the answer to their question, an option to ask a new question should be available (or there should be hotline contacts, email, etc.)
Middle