Do Some People Confuse Public and Private Buzz Messages?

Do some people confuse public Buzz messages with private email conversations? I don’t know, but some of the following conversations I found using Gmail’s Buzz search sounded a bit odd. One of the conversation, for instance, was by a person who only follows one person and only has one follower. Then again, how would this misunderstanding come about, if that’s the case, as Buzz says “Public on the web” next to the Post button, and doesn’t offer a field to address only a single person? Gmail puts private emails and public buzz messages in one app, one click away in the interface... is that enough to trigger misunderstandings? I’ve obfuscated some parts in these screenshots.