The same is true in every realm: taste matters. But that's not a reason to blanket-discourage expression.
(I do wonder if the people here who hate it are picturing students who blindly highlight pages, and the people who like it are remembering the times they've seen a few pencilled sentences in margins of an old book)
>But that's not a reason to blanket-discourage expression
nor was there a reason to blanket discourage treating books as precious and worth preserving. i'm interested in the part where you note what you noted and let the other glaring transgression pass. That was a choice.