Mentat - 11:25 pm on Dec 25, 2013 (gmt 0)
@Prasawet - from examples that I read searching for 4th September event, I saw that many "old" sites got busted.
It seems to me like they removed the "authority" flag and immediately a part of the algo penalised those sites!
My main problem is now scrapped content by bots + sites hosted in Vietam, Russia etc.
All those sites have Protected Whois.
@DansSitesRScrewed - for the moment the recovery sticks.
I hope my link profile cleaning did the job, 'cause I'm running out of ideas.