If you just want to post a link, I'd rather you submit a story with a title than put a "see, this is concerning:" in the comments. Moreover, I don't see how th

If you just want to post a link, I'd rather you submit a story with a title than put a "see, this is concerning:" in the comments. Moreover, I don't see how this article is relevant to Let's Encrypt's popularity. There are only two mentions in the article about LE, this is one: "These actors use Let's Encrypts, Comodo, Sectigo, and self-signed certificates in their MitM servers to gain the initial round of credentials." So they use normal public infrastructure to get certificates? That is concerning, how?