Site traffic has diminished by almost 50% over the past week. I was puzzled at first by this, but after openly surmising that the problem was caused by the background color change, I found that the problem is that the DARKSAYINGS.net address was down. The only way to get to the site is to go to darksayings.blogspot.com.
I didn't notice until 48 hours into the problem because I always log into Blogger.com as an administrator. Imagine my surprise last night when I found that my address, my host's address, and my host's support system were all down. I have a message into the automated message system.
I guess it's just a waiting game now.