I am not sure what pages you are reading - I see no policy pages that specifically say that Author categories have only hidden categories - it is a gross misunderstanding of categorization to remove viewable categories simply to leave categories with hidden categories.  I would like you to show me where exactly your idea is coming from so you can explain your idea here and now - removing anything in this discussion is pointless, as it is something that needs resolving and needs to be black and white  - as there are significant numbers of english authors with categories - it would be good to settle this openly, rather than your ignoring comments and continuing to edit as such.  To offer your solution i'll revert your edits is simply not helping to clarify anything.