Yes, having read about this problem in the Off-topic forum it seems that to log out is the answer. But what a pain!
As to what can be viewed when logged out and what not - that is [I believe] down to how the poster chooses to publish the blog. There's a choice button for viewing by 'registered' users only. They are the ones logged in I suppose, but they can't read these unless they log out, but then they can't see these because they're restricted.....
