The comments problem appears to be fixed now. Apparently there were enough spam comments getting through that the server security put up a block. We'll see how it goes now; if spam gets bad again, I may have to institute some kind of member login procedure for commenting. Fingers crossed.
Meanwhile, in fixing that I ended up inadvertently resetting the URL for the RSS feed, so if you've subscribed to email notifications via Feedrabbit (the button up top there), you may need to do it again. If you get email notifications via zapier, I've adjusted it for you already. And if you actually use the feed in an RSS reader of some sort, hats off to you, I wish more people used such self-curated things rather than depend on social media links to navigate the web. But you'll also need to update the URL in your reader: https://starshiptim.com/home/rss. We thank you for your patronage.