how about offering an "amnesty" so people are encouraged to send you e-mails? Many, many sites have been effected and it seems like a glitch somewhere. Maybe if you get enough e-mails you guys will be able to see a pattern and figure out what happened. You went through this with the 302 redirects and for days no one sent you any e-mails because they were afraid of being banned when G engineers checked it
You can't possibly be serious...."I'm violating google guidelines to try and rank better than I should, but don't ban me if I tell you the URL of my site that has rightfully dropped in the serps".