Obviously not a dumb question at all. My favorite "social network" currently is the Gemini and Gopher blogging community. No bad incentives, people are posting

Obviously not a dumb question at all. My favorite "social network" currently is the Gemini and Gopher blogging community. No bad incentives, people are posting things that genuinely interest them, and it's easy to follow anyone who's posting stuff that interests me. It's also usually easy to directly communicate with people about things they've written, via email. The bad side is the barrier to entry (a hobbyist-level knowledge of internet protocols, and the ability to either self-host or seek out a managed server). It would be nice for people to be able to just install a program and be able to both write and read things. This is something that will require some protocol and application design to keep decentralized, but there's no reason to believe that a blockchain is needed, or even helpful.