We got asked about this from a potential user, and they seemed fairly
excited and confused by it. In particular, it wasn't obvious that
deactivating a user was the feature they were looking for.
Ideally these shouldn't have spaces around them either, but the
font we're using (at least in my browser) has em-dashes that
hardly merit the name -- about twice the width of an interword space.
So I leave them bulked up with spaces.
This isn't very slick, but it should get the main points down,
and it's past time we got something like this up. Definitely
needs in the future another pass at the text, and also some images
(screenshots, etc.) and styling.