The world is big and wide and open to many things. There are millions of people on Facebook and Twitter, Instagram and Tumblr all eager for news. So there is no reason to think that social networks won't be thrilled to hear about my new book, your new book, or whatever it is we have just created--right?
Sometimes authors who audit their statements find mistakes. "I once found a $700.00 error on my royalty statement from my publisher that I noticed after scouring the numbers. My publisher apologized and said it was obviously an error and quickly corrected it, but would he have noticed if I hadn't looked carefully?"