So, I've been nagging and trolling for comments on this blog, but I almost never get any. Part of the problem might have been a misunderstanding of what Google meant by "Enable Google+ commenting." In Google-speak, that means, "Dis-able commenting by any other means including skywriting or whispering it directly in my ear."
So, now I've disabled Google+ commenting, but I'm not sure if that means I've allowed other commenting.
I'll keep my eyes open over the next few days and see if anything appears here on the blog or in the sky, or wherever.