Reddit reviews Fifty Shades of Paul Day

Just did a quick search for "Fifty shades of..." on Amazon and found these:

• Fifty Sheds of Grey EDIT: Did notice that it actually said "a parody" (very subtle) on the cover
  
• Fifty Shades of Red, white and Blue
  
• Fifty Shades of Naughty
  
• Fifty Shades of Kale
  
• Fifty Shades of Bacon
  
• Fifty Shades of Feminism
  
• Fifty Shades of Nagging
  
• Fifty Shades of Paul Day
  
  All with a similar tonality to their cover, and all fail to mention that they're a parody or similar.
  
  EDIT: All this on the first four pages (of 20)