BlogEngine.NET supports multiple users which each can write posts, pages etc. Each user is a potential author and in the User admin page you can add new users or delete old ones.
EditCreate new user
To create a new user you must fill in the form fields by providing the username, password and e-mail address of the new user. The username is also used as the author name, so you probably want to use the first or full name of the user. When you have entered the information needed, press the Create User button to complete the creation. Now the new user is able to sign in.
EditDeleting a user
When you delete a user, then the posts that the user authored will still work and the deleted user will still be listed as the author of the post. You can remove the deleted author by editing the blog post and choose another author in the drop down list.
When a user is deleted he/she can no longer sign in and change any settings, but is downgraded to a regular visitor.