The "Users and rights" section (internal name 'users') lists both special pages that list or act on other users (e.g. ActiveUsers and UserRights) and special pages that change current user's information (e.g. ChangeCredentials and Preferences).
The "Login / create account" section (internal name 'login') only lists those two special pages, but the CentralAuth extension adds several more special pages there related to current user's global account status.
In order to clean up the former, and to make the latter more useful, I'd like to rename "Login / create account" to "Account management", and put all of the pages acting on the current user there. A few special pages added by extensions would fit there as well.
Notes:
- The name "Account management" is my favorite, although possible alternatives could be "Personal tools" or "Profile and settings".
- Make UserLogout listed (same as UserLogin), as it requires confirmation now, so clicking it by accident won't be a problem.
- Move CreateAccount to "Users and rights", as it allows creating other accounts.