@J12t

1. Open Standards - the fediverse is just an extension of the web, an open standard for social networking was inevitable, and long overdue.
2. Decentralization - preventing a single entity from becoming a gatekeeper and bottleneck like Twitter and Reddit did.
3. Moderation - communities want to set cultural standards for themselves, and still communicate with each other.

All of these are reactions to centralized big-tech having captured social media in Web2.0