While reviewing https://stackoverflow.com/q/3139601/212218#3139749 I noticed that the URL that was posted as one of the answers looked weird to me:
I clicked on the edit link to see if the user had perhaps posted some broken HTML, but all I found was a bare URL:
Here's how the above URL renders currently:
(I'm assuming) it should look like this:
EDIT: I wonder if it has anything to do with the double underscore that is causing the word "leopard" to appear italicized?
Let's try that out by removing the double underscore:
Aha! That must be it.