Bloggers are mysterious creatures

So I've been hunting around the blogosphere just now for work (for Paul) and I'm wondering: Why don't bloggers make it easier to email them? A good number of them also don't have profiles. You'd think that professional-type bloggers' would get credibility out of having a bio or a profile of some sort linked from their blog. But some don't even have names. I mean, if someone can enlighten me as to a few good reasons a blogger of business issues wouldn't want their name or email addy on their blog, lemme know. I'm at a loss.