Here's the notification I still get on September 10:
Your blog requires word verification
Blogger's spam-prevention robots have detected that your blog has characteristics of a spam blog. (What's a spam blog?) Since you're an actual person reading this, your blog is probably not a spam blog. Automated spam detection is inherently fuzzy, and we sincerely apologize for this false positive.
We received your unlock request on September 4, 2008. On behalf of the robots, we apologize for locking your non-spam blog. Please be patient while we take a look at your blog and verify that it is not spam.
Find out more about how Blogger is fighting spam blogs.
So if they don't unlock it in the next day or so, I'll have to request again for the sixth time. That means this blog has been on "false positive" for six weeks.
What do you all think of this? It doesn't seem to help posting on their forum.