HN is well known to have very “proactive” moderation, and as such kill low quality articles. As explained in this whole comment section, dev.to is almost entirely low-quality articles, and as such it’s not unexpected for HN to ban the site altogether.
I wish they would add Twitter to this list. Every tweet or "tweet thread" that's been posted has been incomprehensible to read and navigate beyond the actual title or first tweet.
dev.to submissions will appear as dead by default in the "New" queue. These may be vouched, though truth to tell, I don't bother.
"Dead" submissions won't appear in Algolia search.