You're complaining that you can't tell what this HN submission is about from the top-voted comment alone, and you actually have to read the submission?
I've seen people complain about the submission for a product announcement being unclear before, but hearing that complaint leveled at the comments is a new one.
I think it's not so much a complaint, as a suggestion to include a short recap of what the project is in the introduction of release announcements. I don't think OP was so much annoyed, as much as that they considered that it's a smart thing marketing-wise: those who don't know what the project is are unlikely to read on to the third paragraph.
> You're complaining that you can't tell what this HN submission is about from the top-voted comment alone
Nope. johnonolan's post is top and it explains about as much as the site. Not much at all. There's an animated thing going on a page break down from the top, but the site is so jam-packed with marketspeak and vagary that it shouldn't be surprising. Also, I still don't know what it is. Compare that with Codesandbox (also on HN) which is straightforward.
John used to be a noteworthy contributor to WordPress. He went on to create a node.js based WordPress like software a decade or so ago, back when node.js was new and all the rage.