This right here is an example of Steam brand loyalty. Valve employees have nothing to offer Photon, yet you defend them for being Valve. “Lack” of piracy is not an argument, Valve has a company has stolen from companys before you were ever born, their newest crime, stealing patent game controller just shows how little they changed. Risking their entire existence to support an ideal place for games to steal is just a way to get sued by every company.
Lastly, yes you can get banned for illegal keys, do basic research where people got their accounts banned because of publishers who revoked the keys.