I see a lot of people doing "newsletters" now. And I understand it as a way to direct connect with people without relying on either a big company owned platform (youtube or similar) or people manually searching for you.
"I'll become algorithm independent by just sending all my followers an email once a week"
To me ut just feels like you all forgot the precentralized web. What you're trying to reinvent in an RSS feed, except you're not posting it so new "followers" can read the back catalog..
In a decentralised social media it makes sense to host yourself. That's what we decided to do. This instance is run by two nerds, mostly for the why not of it. Feel free to join, and we'll hit you up with an "Hi, who are you?".