If it's from a book shop, you can thumb through it and choose to not buy it. If it's inherited or a gift, then what's the harm? Just discard it if it's been "ruined" or shelve it if there's some sentimental reason to keep it, and get a clean copy to read.
> It's obvious from context I'm speaking of books that ended up with me,
I doubt any of my books will end up with you nor will the books of the vast majority of HN readers and commenters, so why should any of us care about your peculiarities and avoid doing something that works for us and that we want to do?
Sometimes you can thumb through and discover flaws, sometimes you cannot. Sometimes you can get that exact edition in better conditions, sometimes you cannot. Sometimes you buy a lot of used books, and cannot check every one of them. It's always a disappointment to find a book with pages all scribbled over.
> I doubt any of my books will end up with you
You're being too literal here.
If you don't care about my "peculiarities", just don't engage with me. Someone mentioned their attitude towards scribbling, and I cared enough to offer a counterargument on why I dislike it.