There are a LOT more people coming here with problems and posting than who are uneffected or benefiting
I think we need to confirm something: are all these people saying they've lost traffic ranking in the top of the SERPs for Google, Yahoo AND Bing?
Surely one possible theory is that Google have completely blown their foot off this time and people (unable to find what they want within 1-2 searches) are going elsewhere?
Can someone with a top 3 ranking on Google, Yahoo AND Bing for all their keywords come forward and state that they have lost 40%-90% traffic?
Have we got any search market share data for April yet? (Although, as people will still be doing their first search before moving on, the data might be a bit funny.)
Could be barking up the wrong tree, but it seems most are barking at the moon right now which isn't much use either ... this traffic loss coincides with some big advertising spends from Bing and Yahoo doesn't it?
I'm not saying that everyone's traffic loss is because they don't rank on other search engines that might be tried. Obviously the sudden drops and recoveries for many are obviously algorithm related. But could a lot of people complaining on this board have lost traffic for other reasons? Especially the 5%-10% loss complainers?