I understand this is a business decision but couldn't you guys figure out a different way to manage the Q&A. Make it easier to manage (less man hours), you guys are smart I am sure you could figure something out without getting extreme and just shutting down a really cool blog. Hey this community is smart I'll bet some of these Oracle's and Guru's would be willing to give you a hand. Think outside the box. That is what SEO's do.
respectfully
jjgonza