Anyone can have a blog, what with all of the instant blog services like Blogger and WordPress.com. But just because they can have a blog doesn’t mean they should.
I believe that it’s important that it be possible for anyone who has something to say to publish their thoughts online. However, the key part is “anyone who has something to say.” I don’t like the idea of an internet full of narcissistic personal blogs and ad-filled John Chow wannabes. If you have something real to say, or if you’re an unusually interesting person, go right ahead and launch a blog. Plan it out though. Don’t just throw something together in five minutes on a whim. (Also, I recommend getting a domain name if you want to be taken seriously.)
I like the idea of web publishing being fairly easy, but sometimes I wonder if it’s a little too easy.
My general rule of thumb is “if you have something interesting to say, and the initiative the keep the blog going for longer than a year, go right ahead.”