From what I gathered, it was an attack done with a ton of US based botnets, very likely controlled by our comrads in Russia or some other Eastern European country. I would most likely guess it was a hired guns type of gig, where the source of the attack was actually just paid a few hundred bucks/euros to attack his server WITH a US botnet specifically to throw people off. Not sure it worked, but we must all agree, it definitely got the point across.
I personally don't care about CAPTCHAs to be honest. I'm sure there are lots of people who do care, but that's their own issue. It was definitely an attack done in bad taste, because almost all NEW and PRIVATE information comes out eventually, becomes commonly used in the community, and is then replaced by new stuff, so what's the point of trying to save the info for a few extra days or months?
A lot of you BH SEO guys should re-think your business strategies. There are so few of you really good ones in the world, collaborating instead of going to war seems like it would make much more sense from a business stand point. Just my opinion on this.