I use /posts/my/drafts often. I created a “drafts” keyword in Alfred that takes me to https://wordpress.com/posts/my/drafts. Very handy.
During sessions of scrolling and deleting, I get the jitter and jump exhibited in this screencast. I can trigger the jitter by invoking continuous scroll a couple of times. I thought it might be triggered by one particular post (in the screencast it has a featured image of a face), but deleting that post, reloading the page, and scrolling still triggers the jitter and vscroll jumps after each deletion. The screencast shows the latest version Chrome on Macos. Firefox does the same thing.