Data mining, shared databases, and unofficial access, such as through hacking, spyware, government agencies, all go to make the internet not quite as private as it should be. How soon will it be when anyone can "google" someone's email address and find out what they have been shopping for? It sounds like paranoia, but the popular social network sites already collate and link email addresses. e.g. if you ever casually browse through the "people you might know" suggestions in FaceBook, you do wonder how did they manage to connect your profile with some of the people that they have connected / suggested to you?
As I said before, it is just a suggestion, but I would definitely be happier with coded product titles on the billing, which is actioned in PayPal or Amazon. For someone who is determined to snoop around in someone else's shopping, it does not take much to "decode" those abbreviations / product codes, but at least it doesn't "jump" out for any random person who might stumble over it to see.
As I said before, it is just a suggestion, but I would definitely be happier with coded product titles on the billing, which is actioned in PayPal or Amazon. For someone who is determined to snoop around in someone else's shopping, it does not take much to "decode" those abbreviations / product codes, but at least it doesn't "jump" out for any random person who might stumble over it to see.