Last year I mentioned that links in the in-dash Help tab pointed to the Codex rather than to WPcom documentation and indeed that is still the situation today. This is confusing to new users.
Additionally while looking for something entirely different today, while in the Media Library dashboard, I clicked on the help tab and the overview there reads,
This screen lists all the existing users for your site. Each user has one of five defined roles as set by the site admin: Site Administrator, Editor, Author, Contributor, or Subscriber. Users with roles other than Administrator will see fewer options in the dashboard navigation when they are logged in, based on their role.
To add a new user for your site, click Invite New in the Users menu section.
Thinking this was a bit unusual, I started to look at the Help tab in some of the other screens (Post Editor, Links, Feedback, Manage Themes) and this same text appears on each of them.
I refreshed a number of times and the text remained the same, so I am assuming this is a bug. FYI