- I'm not really sure what you're proposing? You really need pictures / mockups. Maybe even 15-second animations that show the flows that are in your imagination?
- IMO, the big problem with social networks is how they spread misinformation. I personally believe that the "credibility" problem is more important than trying to build a decentralized Facebook.
- Don't let your imagination run away!
BTW, as someone else mentioned, this really should be a "Show HN."