And what is the connection of your statement to the thread title?
If customers will use bitcoin in purchasing in some of the big online merchants out there, it's mandatory to give your personal details to them since it's part of taking security and concern for their clients. Even in fiat transactions that is required. If people don't want the idea then don't desire to accept bitcoin by those big merchants.
Lol he had qouted a comment that he wanted to react, basically when someone qouted a statement, he must comment in it, not commenting on the qouted statement will render the message as spam because the person who qouted it is just saying something out of the blue and not related to the qouted statement, the same way you did and what i did to my qouted statment.
Anyway as to the topic, I think the one reason why customers uuse bitcoin is that, their fund cant be accesed by other people, unlike credit card or visa card that many user's details and card numbeer where hacked and used tto purchase stuff online by hackers.