[smileybarry]

> Furthermore, comments could also be embedded as a transaction to a hash of the URL (or something akin to that), where anyone with an access to a ethereum node, public or private can access a global comments system.

Why not just sign content with a private key? Buy a YubiKey for $50, generate a key, announce it to the world via an account you control, continue to host content on non-blockchain servers. Your content can be verified with the same public key and no one can forge it.

I guess I just don't see the benefit of blockchain-distributing your public key, and how that helps protect from forgery. What's to stop me from publishing a 2nd message impersonating you with a new key saying "oops I lost the first key"? Or, conversely, what if you needed to generate a new key with no way of signing it with the older key? Or much worse: what if you haven't posted your key yet and I publish a key for @somebody first? Whatever medium you then use to announce "this person isn't me" can also be used by an attacker to discredit the real public key, or by you to announce your public key.