People are going to read it. Not just friendly people who love you.
You’ve hoped all along that the reading masses will love and adore your book. Universal praise! Money! Fans! Helicopters!
Nope. Even the most successful of books have their share of haters. Trolls will read your book. Critics. Reviewers. Readers who don’t understand what you were trying to do and totally miss the point.
Or, worse, maybe nobody will read it. Maybe you’ll send your little book out into the world and it will drift, lonely and unloved, in a tiny little backwater somewhere far away from civilization.