Because of this, I've gotten into the habit of opening almost everything in a new tab. I browse the front page of HN/reddit in one tab, open comment pages in a new tab, and look at the submission itself in a new tab. In a way, I've mostly replaced the back button with the close tab-button on a lot of sites.

I know HN doesn't have this problem, but I still do it out of habit, and I then open multiple submissions of interes and go through them.