*Chuckles*
I say it is a catastrophic loss! They have gone from getting 39% of AWF's traffic to 18% in just a month. Then again, next month you never know, it might go back again. They did suffer a huge loss of traffic down to an Alexa rank of nearly 1,000,000, but since then, they have recovered somewhat to around the 400 mark. They were previously around 190 before the upgrade to the site. So, my guesstimate is that it is a permanent downgrading by Google. Their black box ranking algo probably penalises sites that get issues.