Thought experiment: would a blockchain-like twitter app be possible? i.e. an uncensorable micro-blog, with the exact same rules for every individual and governm

Thought experiment: would a blockchain-like twitter app be possible? i.e. an uncensorable micro-blog, with the exact same rules for every individual and government. Perhaps a plugin ecosystem where users could add their own plugins akin to they may extend browsers (for things like filtering unwanted content). I wonder if something like that could work. It could be unbiased to a cryptographic standard (at least in theory).