I've followed the installation instructions and tried changing the plugin options in Settings. Nothing happens. I tried checking the "Hide author for this article" box on the Post page and nothing happens. I deactivated the plugin, deleted it, re-installed and activated again. Same issue.
Could it be the theme: cruise ship on the water otj001 2.13 by LeadCamp, Inc?
I have 30 other plugins installed. Could there be a conflict with one of them?