That was bizarre. I've had no spam comments on this blog for years. But something changed on 28 June. And I've had ~460 spam comments since then. To make things worse, I hadn't stressed to much about them because I thought all my posts had auto-moderation enabled. Turns out I was wrong. That is now fixed, and I've deleted all the spam comments.
Apologies to people that received notifications from this site for these bogus comments.
