My observation is that Mozilla Talk does nothing to advance the decentralized Web, so why is it a good thing?
The decentralized web does nothing to advance universal health care, so why is it a good thing?
https://blog.mozilla.org/blog/2017/06/21/2-million-prize-dec...
I imagine people could delegate moderation responsibility to people and organizations with a strong reputation. Let's say GNU, EFF, and Larry Lessig would all publish moderation data and metadata; as well as your "friends" on various social media sites, friends-of-friends, etc.