I believe GM should exist, however should have the option of creating games that GM can not use.
They should also limit the amount of GM used per game every 24 hours. Example: Day 1 the player uses 25k from GM and this is the limit. On Day 2 he can use GM again, however the daily limit will be 25k GM.
But about other means of monetization ... I do not know if they ever thought of creating a virtual store that sells items related to the theme of World War I. It may seem like a ridiculous idea for a gaming company, as it would certainly be very complex to put this into practice. But a similar idea would be a store inside the S1914 that the player could buy skins for the avatars of the games. For example: in a certain map I'm with Germany and I would like to change the default photo of Kaiser for another photo of him only that colorized and for that it will be through a collection of images that the S1914 makes available, some free and others paid. Obviously you would have to remove the player's option to put any photo. It may also seem like a ridiculous idea, but it's something that does not affect the game's balance like GM, which can totally change the course of a game, while what I'm suggesting is just one of those common things in these popular games that love to sell "cute items" for players to spend their money, but that does not affect the game.
I would like to hear other players' opinions on these ideas.
I like that idea, and would like to expand it. I've always wanted to change city and country names, because as North Canada, for example, after you invade South Canada, you're the only Canada. I'm not sure how this would be implemented, but having an option to change country/city names for goldmark could be a good idea.