This article gets at a lot of what we're doing at Seabird. We don't explicitly limit reach of posts or follower counts, but we do cap users' posts per day and are seeing if they will embrace the site without a reply function, for some of the reasons outlined here.
People Aren’t Meant to Talk This Much
Breaking up social-media companies is one way to fix them. Shutting their users up is a better one.
theatlantic.com