Even though I have binned and deleted this:
…its ghost is temporarily still in the side bar, as above.
It appeared at first glance to be a genuine comment, relevant to the thread and the post but led via the commenter’s link (replaced above by “crapaddresshere.com”) to one of those pathetic enhance your **** sites…
There is no Kevin Allen, of course, but the technique does get past Akismet. Check the URLs on your comments, folks, before allowing them to stay.
I laid the ghost by renewing the comment list widget.