As an avid reader, a few years ago, I got a membership at <a href="https://www.librarything.com/" rel="nofollow">https://www.librarything.com/</a> because my queue was getting thin. It has a feature that makes recommendations based on what you read. I spent many hours entering all the books from my shelves. I then went to the library (where I get most of my books) to see if they could print out all books I've read over the years. Nope. "As soon as a book is returned, the loan is deleted from their database." Why? "So the government can't find out what people are reading."<p>The irony that librarians - government employees - actually recognize the real threat and protect their customers is why the library remains the only government institution I support.