Massive Google Play Privacy Issue
The worst part about this is that it is not some kind of flaw, it is by design. Developers are not able to "opt out" of collecting your information either.
Let me make this crystal clear, every App purchase you make on Google Play gives the developer your name, suburb and email address with no indication that this information is actually being transferred. With the information I have available to me through the checkout portal I could track down and harass users who left negative reviews or refunded the app purchase.
