The question marks are ugly and uninformative. It "reads" as "Huh?"

The highlight method is expressive and attractive. It "reads" as "There should be an article on this, but there isn't yet."

I guess my aesthetic sensibilities aren't so refined. I figured out on the first click what they meant, and can't recall thinking them ugly. But, whatever. :-) Barring a bug, I wouldn't have any complaints if the default behavior were changed.

kq