I just got back on after a couple of hours away from SF and the vote count and some of the other text is now looking kind of anaemic or anorexic. What happened? Why did it get changed? I don't recall anyone ever complaining that the font was too bulky, so why make it so light? Looks crap. Please change it back.
It looks like some new CSS has been pushed to some SE sites. As ever mSO has some discussion.