I will cross-post to what I just replied to..
.. to state that the title of this topic is indicative of the development approaches that currently dominate our ecosystem. Which are not truly based on Needs, but more focused on putting app-level features or technical requirements on the wire. The overarching needs as I've tried to formulate them consively in the fragmentation discussion and which can constitute the Mission/Vision of SocialHub, is imho something akin to:
Mission. Support the communication and cocreation of all participants in the ActivityPub ecosystem to help foster healthy growth and evolution of the Fediverse.
Vision. An inclusive fediverse, collectively evolved, where people can find friends and peers in safe environments, to communicate and engage in rich social activities of all kinds.
Audience. Any fedizen from across the globe who interacts with others on the basis of Humanity and respect of each other's Freedoms and human rights.
I just posted this as a toot relating to Social coding commons, as it perfectly aligns with the vision of a peopleverse, where online social networking is supportive and enriching to our daily lives.
https://coding.social/introduction
---
TLDR
A starting point for the development of the Discourse AP plugin might be "Provide Discourse Community Services to the Fediverse" and bring along the rich and healthy concept of Community that product development focuses on with the slogan "Discourse. The online home for your community". And the next step would then be to align and refine that need in close collaboration with other stakeholders in the forum space, such as @devnull of NodeBB, via Threadiverse task force, FEP's, etc.