are being indexed regardless. Even those who do "something they don't want public" under another pseudo-name, are at risk of having that become part of their profile because it can all be correlated back to the same source.
This leads to a discussion of "something they don't want public" vs. something that's illegal. There are things done and said that should private or anonymous for many good reasons, including protecting innocent people.
Reminds me of the Ron White comedy routine about getting arrested when he was drunk: "The cop told me I have the right to remain silent, but I didn't have the ability".
When there is a lot of info surrounding a person, all it takes is selective editing and you can distort any kind of picture. That's what Hollywood and politics are built on.