For me to understand… Discourse still is (awesome) Forum Software and isn’t becoming a CMS, right?
I’m using a blog, build with hugo, cause it’s fast. Comments are possible with Discourse and automatically linked to the Forum. (Same way as Discourse is doing it with blog and meta.) So I got the best of both worlds.
Comments are rarely used, but possible. And reading the Blog in the Forum too.
And people who read a blog aren’t necessarily the same people who want to be active in the forum and vice versa.