I don't see/understand the reference to it affecting our privacy.
This would not affect my purchases at all. You could see this coming for miles and knew it was only a matter of time before the "luxury" of no sales-tax online would go away. States are missing out on money, plain and simple.
-John
Here is one excerpt regarding "possible" privacy issue/s. You can read the full article
here
That means that sellers all over the country would have to turn the addresses of the people they sell to over to state tax authorities. You could design a system to minimize the privacy problems here, but not eliminate them—especially when the time comes for the officials in one state to audit the sales in another.
Let’s say a seller of naughty toys were audited by the tax authority in another state. To prove that it has remitted all the taxes due in that state, it woud have to turn over, at the least, data reflecting the amount of its sales by geographical location. There are something like 30,000 state and local jurisdictions with authority to impose sales and use taxes, more than 7,500 of which have already adopted this kind of tax. If not ZIP+4, then the actual address of recipients would have to be turned over. Could they turn over non-identifying summaries? The point of an audit is to check the honesty and accuracy of summary filings, so the answer is no.