Game directory moderators
This might be something rather cool if you implement moderators for a specific game category. To clarify, users who have been watching a specific game for quite a while will be given moderator privileges to help with smaller channels. Of coarse, this privilege could be removed if users abuse this power and the channel broadcaster still has the option to ban them from their channel. Just a suggestion I think would be pretty neat, feel free to post any thoughts about this! :)
This is an interesting idea, but really this is kind of already filled by Global Mods to my understanding. It seems like another layer of unnecessary complexity to me.
Similar to what you said, I'd love to see game ambassadors or game curators whom are people who curate a game and have the ability to temporarily promote a channel to a featured slot on the game page for a short time. But idk if that's worthy enough.