User blog comment:Dopp/Technical Update: October 4, 2011/@comment-3279487-20111008142949/@comment-13301-20111008151223

That's probably an intentional change, since they're releasing the new "message wall" thing, so people quit from using any form of complex wikitext on blog comments or messages on the wall (since they're both the same), and then justify the simplistic interface.

Edit: Removed the bold on intentional change, I was meant to put it in italics, but the edit button is now hidden in monobook. I cannot assure it's intentional, but seeing how things are changing, who knows?