walkman - 4:57 am on Feb 26, 2011 (gmt 0)
bottom line is that I think its a combo of things, no magic bullet.
Well, on 2/23/11 things were fine for those complaining today, and then something changed. So people are trying to see what it was that's not acceptable right now.
SEOPTI, the point was to try, as hard as it is, to cheer people up. Do I think Google will reverse this? Nope, but they will tweak it so most innocent sites will rank again, or at least partially gain some lost ground.