Well, I have, I think, eliminated all references to my family's true names, from wife to siblings to kids. My own name does remain attached to one post, because the joke wouldn't work if it wasn't.
There are many good things about Blogger's search capability, but it's not the smartest of algorithms. For instance, searching for "uncle" also gives you a hit for "unclear." That's not so bad, but what if you're searching for your brother's name, and hit every post you wrote about--
Wait, I can't say it, or I'll reveal his name! But--AAAARGH! (head explodes)