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As crobb305 is observing the rotation of some sites I think this is the reset of "user metrics confirmation". All pandalized sites have this but on a different day and i a more or less heavy way.
Something is happening.
Since this morning (local time) I see HUGE movements in my SERPS.
My main keywords are moving up and down like hell: +368, -310 two/three hours later... +137, -220... +423, -238... etc...
Anyone is experiencing the same?
I definitely think this is real time evidence of testing or machine learning. I've watched this rotation for several weeks, and it is predictable.
reason for a minus 950 by PandaI never heard of minus 900+ penalties mentioned in relation to Panda. Usually its effects seem to be less drastic (position-wise, not traffic-wise, -50 would already be dead enough) and much less specific - you'll be fluctuating between some low SERPs but not all the way back to 900+. And it would be really hard to give it a particular "minus xx" number - yours seems different.