Supporters... As in, one who supports the game. The whole idea behind being a supporter is to help pay for the game and to keep it running. You don't buy a beer at some store because you're supporting a beer company. That would imply you're giving money to them in order for them to succeed, but in reality you're just doing it because you want a beer. Moral of the story... if you're paying for supporter for any other reason than to try and help the game grow you need to reconsider what you're doing.
My point exactly- i pay to get a full bottle of beer, not to support a beer company. Same with the supporteship here- ill pay to use those things promised to the supporters in the adds and gamemanual.
If there werent any advantages like PL games, logos... and so on then im quite sure atleast 90% of the current supporters would become a nonsupporters, leaving the hard task of keeping the game alive to the shoulders of kind persons like yourself.
About helping the game grow... Thats a good thing and i do understand its needed to be done, but i dont think new tactics and other features like this should be added before the servers and gameengine are "bulletproof".