The 7.x version has a link to http://drupalscout.com/knowledge-base/importance-user-roles-and-permissi... on the settings page and in the help text. Both 7.x and 8.x have a link to http://drupalscout.com in the README.txt file.
That domain is dead, I guess - all paths link to Acquia's home page.
Fixed
1.0
Documentation
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