"Impress with this protocol" ??
My primary motivation for the payment protocol can be seen in this mock-up of multi-signature transaction authorization:
https://moqups.com/gavinandresen/no8mzUDB/p:af7339204
I want much more secure wallets, but we can't get there unless the "who am I paying" piece is authenticated.
You should save the "Gavin is trying to impress evil institutional investors" mud-slinging for when I get around to laying out the argument for increasing the block size, because that would be closer to the truth.