The account itself is new and advertising a service/website with automated comments. That's a very common bot pattern on HN. And it had made 3 (now 4) comments all littered with LLM cliches. All posted 8 hours from the last, except the first two within 10 seconds of each other, all about the same length.

Em dashes are one, "genuinely" is a small red flag. "The XYZ, written out" in another comment. While I am quite confident (and seemingly the HN bot detector agrees with me, every other comment this account has made is now dead), the rest of the tells I see are more difficult to enumerate. Something in the repetitive "The part that clicked for me" that appears in nearly all of them. Silly/obvious observations. Small, strained micrometaphors. "I really like that this feels more like <the thing that it is> than <the thing that it isn't>."