I've heard this sentiment repeated and I believe it, but at least the purpose of my own blog is to communicate insights I've had. I almost make a point out of not blogging unless I feel that I have something truly interesting to share. It seems that flipping that around would come at a price.
That's where the editing and curation step comes in, at least for me. I write a lot more than I publish. If my writing:publishing ratio ever became 1:1, I'll stop publishing things that are interesting and insightful (well, interesting and insightful to me personally; other people might judge my writing differently).
Sometimes what works for me is to write something and let it sit in my drafts for a few days. Then if I read it back and still find it worth sharing, I polish it and hit the publish button. If not, it goes into a folder called "Retired" in my Obsidian.