Interesting! Do you tie the game theory to specific classes of applications?
I like reading about network theory after some of the books and studies I ran into touched on it. So I started my own space about network theory. You might want to start your own space about game theory - I checked and the game theory spaces aren't very active. Be sure to post regularly there though, even if it's a link you found interesting from somewhere else.
Also, here are some spaces I write for that will take this type of content:
There are probably some writers who enjoy discussing game theory, too. I don't know who they are because this is not my topic. But there's a good chance you'll encounter professors or at least grad students in the field, which is fun. It's one of the few venues where scientists can connect about their work with nonscientists, and some of the amateurs here also have professional level knowledge.
About life hacking, here's a space I run about monetizing Quora:
There are also several spaces devoted to life hacking. That's a VERY established topic on Quora where you should be able to find a really vital community.