Beyond the "crypto grift," a blockchain-based social network might offer some benefits:
- permissionless - (no moderation)
- means for auto solvency - (we are not the product)
- interoperability - (multiple clients, forks, etc.)
- privacy
"no moderation", massive problem. I'm not hosting my (admittedly limited) content on a platform that lets my videos get posted in proximity to scams, CSAM etc. If I'm going to ask people to go to somewhere to see my videos (again, admittedly limited) then I'm not going to want them to be stumbling across that stuff.
YouTube isn't getting it right, they're allowing bad shit (poor quality, scams, excessive shrieking) and taking people down for spurious DMCA takedowns, but the answer isn't "no moderation at all", that's not the problem.
As a user I don't sign up to somthing because it allows anything, doesn't take anything down, I sign up beacause it has the things I want to watch. I'm not a character in cryptonomicon or snow crash.
You can moderate at client level whatever you want.
There could be shared lists of non-acceptable users/content based on your world views (like AdBlock but for users).