I find my own annotations distracting when I’m rereading a book! I only annotate cheap paperbacks for uni and I’ve one or two novels I’ll eventually replace with unflagged/scribbled on copies because I just want to reread the stories.

Even professional annotations are sometimes annoying. Sometimes they’re really helpful but Ive come across a handful which spoil later parts of the book. Why?!

Same here! I recently had a library book with someone's annotations and it put me right off!

Same. The used bookstore where I sell my books actually won't accept them for resale. Understandably so. I also have zero interest in doing any annotating myself.