It's no secret that some of Google's search results are very inaccurate. For example, when you try to find the number of backlinks to a site via search term "link: url", and when similarly with content "site:url", the results you get for the top rankers are quite ridiculous. I don't know what these functions are good for if results are inaccurate. Funny when you try them in Yahoo, the results actually make sense. So, is this some sort of mechanism to protect these sites, or is Google trying to confuse people and mystify its algorithm?
Li, I agree the link and url boolean queries seem not to provide the right data. I also find, though, that Yahoo, does not seem to clean their results, so they can be inflated. The reality is somewhere between the two....
Why would google care about giving SEO's the key to rigging their rankings by telling them which links their algorithm values the most? Are you serious? Sign up for webmaster tools. Google will show you all the links for your site - you just can't view other websites.