Nice script, here is the decoded version. If i'm not mistaken, it will change your BTC address...
Just to be clear, this script does not change users btc address, part of code that
sends request to freebitco.in edit op is used for authentication purposes.
It uses freebitcoin edit profile script response to determine if users btc address is really the address for which the script was generated.
There is no other way we can authenticate users unless we use edit profile functionality.
Hope you gonna understand how it verifies btc address and confirm that you were wrong about it, because you were skilled enough to unpack it.
Our users can also confirm that their address wasn't changed after script activation.
We didn't have those intentions when we were developing script.
phpTaskForce Team