Note that the front page (which HN links to) does NOT have this feature -- only the article pages.

Congrats! You win!

It is sort of a silly feature, but I figured the discussion here would be interesting. I was right :)

Under Linux with Firefox and NoScript enabled. Right-click "Copy" does add the link. But just a "highlight" and "middle-button-paste" doesn't add the link. NoScript warns me of an XSS attempt when I highlight the text though.