Same here. And I am also concerned for those users who log in using public devices. This maybe an old school way of looking at things, but many of my community’s users still use cyber cafes. If they forget to log out it can be a real problem for them.
Maybe a plugin or admin setting to provide a “this is a public device” tick box at login would be interesting for some communities that need it. Then a logout link could be provided right at the top level, very prominent.
For everyone else the login would remain where it is. Users on their own devices do not need to be encouraged to log out.