It sounds like they've gotten a few questions related to this and set up a standard reply to people asking about it. IIt sounds like they've gotten a few questions related to this and set up a standard reply to people asking about it.
I don't begrudge their points (Bill pointed out why most of them are irrelevant). They're right about the collaborative editing, but we consider this a strength of our system. MSN Encarta probably said the same thing about Wikipedia. "You can't trust any old yahoo on the Internet for your research. Our system is better!" -- and depending on the context, they could be correct.
In the end, I think the Internet is the true judge of the merits of each system:
Postscript: Note that even though Panda hit our site according to Alexa, our Google Analytics statistics show very little drop in stackoverflow.com traffic (not the case for serverfault.com). Also, you can see from this chart that our traffic rank barely budged (even with Alexa's perceived fall in Daily Reach).