According to Techcrunch Google Pulls the Google SearchWiki.  Unsure as to way  but here’s what they said:

Users are reporting that the recent changes to Google’s search engine, called SearchWiki, have simply disappeared from the site. It’s certainly gone from my account.

[ad#ad2-right]User reactions were mixed but weighted heavily towards “this is lame,” and there was no way to turn off the features other than to conduct Google searches without being logged in. Another way to turn it off was to switch search engines.

[via TechCrunch]

I’ve got my theory on this, and it’s quite a good theory.   I think it was a making search results come up wrong or not at all.   The last two days they’ve had that going my page views have drop BIG time.    According to my Stats I’ve had 236 Unique Visits for Thursday, and 232 Wednesday.   My Friday stats show that I only got 185 Unique Visits, dropping 40 to 50 people.  My stats for today which is incomplete shows that I’ve only gotten 136 unique visits.  Although that is complete you can see where I dropped drastically.   I think Google was getting yelled at by websites due to the stats dropping.   I am guessing people could tell if they wanted to go to a site just by reading the comments.  This will hurt every site, including TechCrunch.   I will say this is only a theory and this might or might not be the case.

This however is the best possible explanation that I could come up with.  Do you know why they did that?  I don’t know?