I'll chime in here, since I'm building one. Twitter does one thing that I opted to change--everything is public. The short-form, low-effort, public posting that defines twitter leads to a platform that promotes trolling over discourse. Haven[1] instead promotes private discourse where every post is private. It's fully decentralized in that everyone runs their own instance, but with all open protocols (RSS), it would…
Does the "you only see what you subscribe to" increase the echo chamber of the web. Would it led to "here are more thoughts that you already agree with" which means people won't have a chance to see the other side of a coin?
It seems to me that most of what passes for discourse there is yelling at the “other side” and smug/snarky in-group posts.