When I first set this blog up, I set it to accept comments from anybody. However, today when I was working on it, I discovered that it was set up to accept comments from registered users only. I don't know if I did that or it happened automatically when I switched from Blogger to Blotter Beta. I'm thinking Blogger Beta (Google) did it to register more users. But I certainly don't discount me doing it inadvertently.
Anyway, I switched it back to accepting comments from anybody.