We're starting to see a recovery on our site, as are a few other publishers on the Google forum thread. We're hoping that tomorrow may be a 'normal' day for us.
It's just awful that we've all had to go through this. We've lost huge money with no admission or help from Google. This same thing happened to other publishers last month and this month. I'm worried that we are going to be dealing with this again in 25 days.
We've been operating our websites for around 15 years and have been with AdSense for much of that time. We've always tried to keep our sites clean and follow the AdSense TOS. It really hurts when something like this happens and Google won't answer emails and doesn't seem to care enough to even admit that something is happening.
I did customer support for years at an ISP. One of the things I learned is that customers are very willing to be (somewhat)patient and understanding if you listen to them and admit (or at least consider) that there may be a problem with the system. Ignoring, blaming them or denying an issue just makes people mad and ruins your reputation.