I discovered today that my blogging platform is including in the blog feed any post I update. And it counts as an update changes like enabling and disabling commenting on an old post. This behavior means that I have been spamming your feeds with old posts whenever I make a these innocuous changes.
I am a little embarrassed, and thought I should apologize.
Sorry for spamming your feeds.
I’ve implemented a band-aid for the bug. I’ll be more careful going forward.