There was some speculation if the poll was valid, because of although there was a new Google design launched in early May, there was also the MayDay update. I told people to take the poll based on their rankings not changing, but you never know if people listened.
Today, I spotted a new WebmasterWorldthread with more webmasters complaining about the same situation. Many are saying that they still have top rankings but the traffic from those rankings have plummeted recently. One person said:
We're back to a position we used to hold a good year ago. However, we're actually seeing traffic drop - we know what these positions should bring, but it's no where near old traffic levels.
Another person said:
I have a similar experience ..very stable serps but huge traffic drop..i am hoping it is world cup related as the globe seems a little distracted at the moment and the traffic drop coincides with the world cup period...fingers crossed.
It does seem to be related more to the new design than world cup, in my opinion but who knows.
Forum discussion at WebmasterWorld.