I've noticed something with the "skinny line" problem. At least in chrome, it always happens when I either open the post in a new tab and it's not the visible tab, or it's not the displayed post when I just click on the link to open in the current tab. More often than not, the post will open fine if it's the current post in the current tab. Previous posts in that tab get the line until I refresh. Haven't tested in firefox yet. But the behavior appears consistent.