These folks are claiming that this is an issue without creating a minimal program that reproduces the issue. If it were a real issue it would be trivial to make

These folks are claiming that this is an issue without creating a minimal program that reproduces the issue. If it were a real issue it would be trivial to make an app that POSTs to an API and inspect the traffic. I have inspected several POST requests from iOS 6 apps and have not seen anything like this yet.