Growing the #fediverse is going to require a lot of infrastructure. The numbers we're seeing now in terms of new DAU for servers are still less than 1% of Twitters north American numbers alone.

This article by @[email protected] lays out some of what's necessary to keep the fediverse going in the face of it's popularity.
https://knightcolumbia.org/blog/how-to-avoid-social-media-blight