Does SO intend to support IE6 for chat? Or is it impossible? There are still many IE6 users out there, I think. Especially in some countries that still primarily use Windows XP
We looked at the numbers pretty recently when we merged chat.SU and chat.SF into chat.SE, and even for IE7 the number was pretty low. For IE6, it is another order of magnitude lower.
So on one hand the net benefit from supporting IE6 is exceeding (and decreasingly) low; on the other hand the effort involved is very significant (let's face it; IE6 is a PITA), and on the third hand (*), anything we can do to drive another subtle nail into IE6's coffin is a good thing. Sorry, but it is.
*=Jeff uses the VC $$$ to get a productivity bonus via surgery, by gifting us each with extra limbs. Which is fine, except it is snowing here and I can't find gloves in triples.