This is why you must self-host. And use HN for comments.

You may think I'm joking, but my pure self-hosted website can get more attention through HN if I put effort into blog posts.

I have two blog posts that say the same thing, one with a ragebait tone, and one that is moderate. HN loved the moderate one.

I love this site.

Anyway, I think he hit on the reason: other platforms give you bad signals for their own benefit. HN still gives a good signal, and self-hosting avoids bad signals from bad platforms.