what you are describing is no longer blockchain and has no cryptography involved anymore. it is just a database like what banks have where you own an account which has an associated balance with it. and unless you can find a way to decentralize it and include cryptography in it so that there is no way of cheating that "balance" without needing a centralized entity to update these balances and control fraud, you won't be able to implement your idea.

yes, the best way of remaining anonymous according to Craig Scammer Wright is to always connect to NSA and report all your activities down to every detail willingly
because that is where we land with big blocks, a handful of nodes run by NSA which you have to connect to.