Say you go on a date with someone. And it comes up in conversation that you both blog. And you both mention that you don’t give the url to people you’re dating, because it just results in weirdness.
So you forget about it, and go home. And maybe a couple days later, you google the person. And they’ve written a blog entry with their full name in it. So there it is, their blog in all its bloggery glory, tempting you to read it.