This is by far the number one funniest or just odd question to ask. The normal reply you’ll get is, “If you want to keep it private, get a diary.” I mean really, if you’re going to join the blogging foray you’ll at least have to understand that it’s not easy to keep your blog under wraps. And it’s not from prying human eyes but from the eyes of the search engines.
“If I don’t submit my blog website address to search engines then I’m safe from being picked up right?”
Well, that’s a no or just a maybe. Although you haven’t submitted your blog to any of the major search engines, they might still find you if you don’t own your own domain. I say this because search engines will scan from the Top Level Domain (TLD) which is your www.your-name.com then dig deeper into the depths of your domain.