Yeah, those are the ones I think can be edited down when I see them. Otherwise, a lot of scrolling space is needed and that just makes it harder to read. I dislike editing other's posts, but I presume it happens unintentionally sometimes and then can't be edited out by the poster.
On occasion the original post can be necessary, given no other reference. But a lot of them are just taking up space, especially those big covers.
If you copy the reply box into Wordpad (in Windows) or "Simple Text" (I think) in Mac it will automatically dump the pictures for you. You can then easily delete the paragraphs you don't need in your reply.