There was no sarcasm in my post. All of those companies really do intend to compete internationally one day. They might have some difficulty in the US, but there are plenty of countries that would be open to using their services. And theres no reason they cant apply social scores to their international users.

Edit: was it the part about momo that makes you think sarcasm? It wasnt.. if the chinese are ok with this scoring and see it as useful (or its important because it limits your career path, for example), I can see private companies building it into their apps to extend it... using it for dating, apartments, loans, etc. There's no reason a tool like this would be limited to government only uses if the people approve.