I'd like to see a social network that tries to minimize the impact of "whale" nodes. I can go to twitter if I want to see what's on the mind of the world's top influencers. I can go to facebook if I want to see people mass-sharing news articles with 10,000 toxic comments about the latest political events. Where's the social network built around connecting you to your network and only your network ? This would likely…
Group chats are all you need for that.
Something like Discord gets even closer. I'd say Discord actually makes a pretty good social network, although most people don't treat it as such. In my experience, the biggest issue with discord-as-a-social-network is the binary nature of discord server membership. I've had my one "friends group" server split into 3 or 4 servers (each with 80% membership overlap) over some people who had drama, and this makes it much less manageable as a social network because you tend to spend most of your time on one or maybe two servers.