Nothing to be proud of, but I just got my first spam comment.
When I frst started this blog, I had full shields on: word verification *and* comment moderation. I've been experimenting with running with them disabled. I disabled moderation because I like the immediacy of people being able to leave their own comments without having to get me involved to "accept" their comments. I disabled the word verification because it's not accessible: vision-impaired readers will find it difficult or impossible to read or view the CAPTCHA graphic.
The first problem I had was finding where the spam comment was placed. The email notification I get from blogger doesn't tell me to which blog entry the comment was added.
The second problem was figuring out how to delete the wretched thing. I found an old post in one of the blogger help groups which suggested that, if I select "Post Comment" I would have the opportunity to delete any comment. That worked, and I was able to delete it permanently.
A long-standing problem is that all of the icons I would usually see - edit, delete, and so on - on the blog entry page are missing. I suspect it's a template problem. I may have to re-generate my template to ge back the correct URLs for the icons, then edit the template to add back my changes.
I've put back the CAPTCHA word verification for now. I don't know if that or the moderation is better, but clearly I need to keep some protections in place.