As Facebook has rolled out their new Facebook Questions product - they have altered the core "news feed" posting tool.
Perhaps it is an effort to drive traffic to Questions by placing it "in the river" ... Or perhaps it is the natural expansion of "content types": status, questions, photos, and links. But it is a marked changed in posting behavior: users have to explicitly define the content type:
The striking experience for me was when I posted a link within the status update and it behaved differently: the link is no longer recognized (automatically grabbing the link, imagery and snippet). To share a link with commentary, you now must explicitly click "post link":