a) On this state of affairs, the place B doesn’t spend from the deal with besides to ship to the alternate, and A already is aware of how a lot B is receiving in lease, there is no such thing as a privateness profit strictly between A and B of utilizing a brand new deal with for every transaction earlier than A and B. Nevertheless, it will be simply noticeable on chain to a 3rd get together that one deal with receives funds usually, much more so if A pays from the identical deal with every time.
b) A, and everybody watching the chain will know the deal with and each transaction involving that deal with.
c) No info shall be hidden almost about A and B. To a third-party watching the chain, they’d not have the ability to know that’s the identical individual receiving the cost each month, like they’d if the identical deal with was reused.
d) General, that is much less relevant when involving simply sending to an alternate. The good thing about utilizing completely different addresses happens when B sends the bitcoin to a brand new individual. If B has all their bitcoin on the identical deal with, then they’ll expose their total stack to anybody they wish to pay, even when they’re solely sending a small quantity. For instance, you would not need somebody to see your whole checking account stability when sending them $20. The opposite profit will not be having exercise that’s indefinable by third events. Making funds each month to the identical deal with could be noticeable.
