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I think they unambiguously want to be indexing everyone's whole social graph. Facebook and others certainly do it anyways, but under the pretense that some people are to remain hidden and others are not...

There is an option -- check near the bottom at https://profiles.google.com/me/about/edit/d .

"If you currently have a private profile but you do not wish to make your profile public, you can delete your profile. Or, you can simply do nothing. All private profiles will be deleted after July 31, 2011."

http://www.google.com/support/profiles/bin/answer.py?hl=en&#... http://news.ycombinator.com/item?id=2321727

That only stops Google+ internal search from returning your profile given your name. Your page is still public (and linked to by, for example, your friends' pages) so any search engine can index it.

It just ensures that I don't put much of use in my profile.