I agree. My solution FWIW is to use a pencil to put a small dot adjacent to the paragraph or sentence of interest and write the number of that page on the back

I agree. My solution FWIW is to use a pencil to put a small dot adjacent to the paragraph or sentence of interest and write the number of that page on the back inside cover. It allows other people to read my books without disfiguring them. The books that is.