1) Private Leagues (though supporters get the ability to have more people in them.)
2) Buddy list (that is self-explanatory why I'd want a buddy list)
3) Forum Search (In my opinion, its not important enough to be only for supporters.)
4) Rewards such as trophies, flags, etc. (Wouldn't you want to keep track of your rewards, if you werent a supporter?)
So basically there shouldn't be Supporter, since if you made all of these features free, Supportership would likely drop to the point where the game could not be sustained, and you'd have no game to play.
These items are server intensive, and cost more money to maintain, and will not be made available to non-Supporters.
NO ONE at this table ordered a rum & Coke
Charles: Penn has some good people
A CT? Really?
Any two will do
Any three for me
Any four will score
Any five are live