Well if Panda and Penguin were aimed at webmasters, the Host Crowding issue is definitely going to upset users so it will take another few months for that to become apparent in the search trends. There's probably an as yet undetected trend of people having seen Wikipedia results ranking so highly in Google not bothering to use Google and instead going straight to Wikipedia for the answer. Comparing Google stats with Wikipedia stats would be interesting. There's also a generation of schoolkids who, having used Wikipedia for their homework, may well come to rely upon it for other exact match topics.
[edited by: jmccormac at 8:02 pm (utc) on Jun 15, 2012]