Sorry... but when I download the Bitcoin blockchain, I am hosting it for Bitcoin, not Mastercoin, not Colored Coins...
(Bitcoin) Blockchain serving anything anything other than Bitcoin is considered parasitic.
When I downloaded the blockchain, I don't want anyone to use it for buying pornography. But we don't get to decide what people use the blockchain for.
Besides, 'mastercoin' isn't something '
new' at all. It is merely '
bitcoin on steroids'. It is still
bitcoin. It is just '
high performance bitcoin'. Why do you insist 'it is something - not bitcoin'. Mastercoin is bitcoin+. It's bitcoin.
Your analogy fails it. By your logic, it's okay for Bitcoin's blockchain to require you to download Quark's blockchain as well. After all, we don't get to decide what people use the blockchain for... the extra 40 bytes is but a small example of that.
Bitcoin's blockchain is for bitcoins, any extra information attached to the blockchain to host other coins increases the energy expended to maintain it. Isn't that by definition parasitic?
From your past posting, it seems like you're pimping out MSC and Counterparty bullshit for your own interests... tell us, how many MSC do you own?