you know, I almost wrote "I did this after dicey, because it happened to her before it happened to me, but then I didn't bother.

The thing is, for you and me, it's "not reviewing, just blogging". But one of the things about the blogosphere is that any blogger can be a reviewer, and lots of "amateur" reviewers write very high-quality reviews which are valuable to people making decisions about whether or not to buy a book. So for us, because we are also professional reviewers, it's not reviewing. But for the blogger-reviewer, it really is.