1) your content and posts are online it doesn't prevent anyone from copying them, not to mention that while you can design a blockchain and that allows you to permanently delete content it doesn't prevent anyone from storing revisions of the blockchain that had that content or republishing that content again; sure it won't be signed with your key but those drunk photos you took during spring break will still be there.
2) There is still a single point of censorship; distributed internet isn't distributed unless you control the physical infrastructure a government can simply shut your blockchain down.
3) RSS
4) What does this has to do with a blockchain?
Again nothing here requires a blockchain, some of it might actually be harder to implement in the manner you speak off with one.
You seem to be having problem following the conversation. Please look at the first two sentences of Dogma1138's post, which contain two questions: (A) Why blockchain (B) Why decentralized.
My reply can be summarized as: (A) I agree, blockchain isn't needed (B) ...but decentralization can help in these areas.
2) There is still a single point of censorship; distributed internet isn't distributed unless you control the physical infrastructure a government can simply shut your blockchain down.
3) RSS
4) What does this has to do with a blockchain?
Again nothing here requires a blockchain, some of it might actually be harder to implement in the manner you speak off with one.