Nate's take:
http://the-digital-reader.com/2016/0...ebook-service/
Teleread:
http://www.teleread.com/amazon/scrib...emi-unlimited/
Scribd claims 97% of its subscribers read 3 books or less.
Presumably they would prefer the other 3% left.
Thing is, unless they get newer, better terms from their book suppliers, even 3 books is a money losing proposition on tradpub titles.