hm, no idea. I haven't thought about revenue models much since I've envisioned this more as a grass-roots thing than a startup opportunity. I think the main thing would be just making it dead easy to get started. You wouldn't necessarily need to jump start a new network since the whole point of this is to be interoperable with existing networks.
A good first step might be making a personal site generator. Put in links to your twitter/youtub/substack/medium/whatever accounts, and then you get a nice looking site with all your content in one place. Maybe throw in a subscribe button so people can get email digests of all your content.
and then, almost as a side effect, anyone who uses the site generator also is publishing it all as an atom feed.