@blockhash7: I mostly agree, also about the "slim" part. But I think we should not switch to the mini-blockchain scheme. The reason is that this scheme doesn't allow contracts with the Script language and "forgets" old blockchain entries - so it couldn't be used anymore for the "decentralized web". Cryptonite is awesome as a cash replacement, but for other purposes its scope is more limited.
Thank you for your answer! Are the concepts of the mini-blockchain scheme and the concept of the decentralized web really mutually exclusive? I thought the web2web service uses the blockchain just as a directory service and the actual website data is stored in a torrent? (maybe Im mistaken here. Sorry I couldnt find much information about the web2web publishing part) I think its possible to apply the concept of the account tree of the mini-blockchain scheme to stored key/value pairs in the blockchain. Just like the account tree forgets about old account-states, it could forget about old values of keys. In this way you can store data in the mini-blockchain and minimize its footprint. To keep it slim, so to say.