So everybody in my household knows my plex pin. Because when we sit down to watch a movie I have to openly input my pin code. With that information, all one has to do is log on to plex.tv with their email and password and then on the user screen they can input MY ADMIN PIN and then have complete access to delete/edit content, invite users, adjust settings, etc…
This is what I do. I have my admin account setup just to administer my libraries, server settings, etc. The last account in this screenshot is an account for both my girlfriend and I. That’s the one we actually watch content on.