[1]: https://havenweb.org
I've been on the lookout for one. Wish there was a cool one. I go out and volunteer for sanity.
The issue is, the big platforms are where everybody else is. To them, the internet IS facebook, insta, X, etc..
To us, it's something more.
I'm always checking out the blogs I find on here though. I should interact more with them.
2. I think it’s a matter of being proactive. I treat blog-to-blog interactions the same way I treat person-to-person interactions. If you want the connection to happen you have to be willing to act. Which is why I often send emails, share thoughts on what they wrote, maybe share a link to something they might find interesting based on what they write about. More often than not, people with public personal blogs want to interact with others.
Until they give in and introduce ads, it's just too convenient to run small groups/communities in it, instead of anything else.
The obvious downside is that (like with other apps) everything is inside a closed ecosystem. But there is zero spam, only a few non-intrusive ads, and generally good UX all around.