I think that "like it or not", we all nee to get used to this new Google "EvErFlUx". Since MayDay, one pattern has held true throughout: We get a minor upset and juggle of the serps, then traffic takes a dive for a day, maybe two, then everything pops back to "normal"...only to have this same cycle endlessly repeated week after week.
I just recovered from a nasty Zeus Banking Trojan infection (from a fake BBB complaint email, stupid me!) and the perp actually got into my server and started sending fake IRS emails stating "Your tax refurn was rejected"....the IRS notified my hosting service....so, I suppose I can expect an audit this year...long story short, we got everything cleaned up now...I hope.
Anyway, I do have a point in here somewhere...
My point is that our fragile footing in the serps should not be taken for granted, G owes us nothing, so it's our responsibility to keep our sites as white hat as possible. After all, all the "quality updates" are designed to circumvent the slime ball scrapers, black hatters and hackers who have spoiled things for us all.
Can you imagine what the serps might like be WITHOUT all these algo updates?