the other point is; BBs will never do that because they will surely lose money witout increasing the price in "richer" countries..
look on it, like the bleachers prices in low devision. if you put 'em on 20 you would have an empty arena, and gain less money then when you sell it for 10 bucks and get the people into the arena who want to watch the game.
Many companys work with that system, and no they don't finance it with high prices in the rich countrys and sell it just out of humanity in poor countrys. But they know if they don't sell it they don't get money through it.
in the system i proposed, rich people (maybe unintentionally) help poor people in their country by buying Supporter first..
if you are a wealthy person, it doesn't matter if you are from USA or China, $12 for three-months Supporter is no
even poor people in wealthy country could buy supporter, where in poor country only the rich people don't care about money and even the workers would notivce the missing money. here an Ukrainian makes the example that his dad earn 5000 Dollars a year and raised a familie with it. Now imagine, him in an country like the US with the same amount of money and the difference 60 bucks could make then.
And like seelenjäger says, with your system the rich countrys would pay less for supporterships, because even the poor people could afford it and so most people who wants it just buy it.