One thing that has occurred to me regarding the micro transaction confirmations that would be sent before each payment is that this would potentially clog the network as each time there would be three transactions send on the blockchain as opposed to one, a 200% rise in traffic.

One way around this would be to have an approved address book where this is only required on the first transaction. This would require a fixed receive address, I know a new address is currently generated for each new transaction in the Daedalus wallet, but a fixed address, such as those you see for BTC donations on Youtube vids etc would make this work a lot smoother (at all).

When sending a particularly large sum, or sending to an address you have not sent to in a while, there could be a checkbox to manually allow to to perform the micro-confirmation again for peace of mind.

It’s a really interesting topic and I know a lot of us have that fear of sending large sums around because of the implications of a wrong address, not to mention the malicious software which changes the receivers address when copies and pasted into certain wallets.