Yup, I was thinking that was the case, and that you didn't "act in bad faith", so to speak :) In other words, copying SO's content would actually be a good way to "preseed" the site with interesting q&a - if the attribution requirements are followed (some people get really angry when they see their own content misattributed).
Anyway, I was a bit confused about the +1/+share buttons; you might want to differentiate them a bit further. Apart from that, I like the site's extreme simplicity, both in look and operation.
That whole introduction needs to be scrapped and rewritten for NPOV (also for shitty writing). And I'm not sure the guy is notable enough for his own page.
That being said, his 'about' page is more useful than wikipedia in this case: