I'm guessing there's a popular but outdated "how to level up" guide somewhere, but I don't know where. Youtube brings up more recent videos, and the older ones don't really go into specifics about the ambassador badge tasks.

Random thought... could the badge page still be outdated in some languages? I remember something like that happening with one of the support articles a long time ago.

I've seen these accounts before, one of them even had a "Valve Employee" trading card featured on his profile from this game.

http://store.steampowered.com/app/403740/GabeN_The_Final_Decision/

Valve rejected my refund request for a game I bought 2 years ago. I'm going to sue them.
https://www.youtube.com/watch?v=mHzegeEKux8
There are too many anime boobs on the main page.
https://www.youtube.com/watch?v=RybNI0KB1bg