Try a new Google feature out... decide it's not for me...
And I can't undo it?
I actually looked at Ask.com and Dogpile.com for the first time in years because of SearchWiki. I'm sure it's a great idea and I might like it later on, but let me turn the thing off. I shouldn't have to create another google profile just to view pages without x's, clouds and extra arrows all over the place. Looks like a playbook.
Don't foist things on your users. Let them come to you. That's what made Google a great hub.